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Keyword: science

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  • Astronomy Picture of the Day -- Cat's Eye Wide and Deep

    05/28/2016 4:18:20 PM PDT · by SunkenCiv · 6 replies
    NASA ^ | Saturday, May 28, 2016 | (see photo credit)
    Explanation: The Cat's Eye Nebula (NGC 6543) is one of the best known planetary nebulae in the sky. Its more familiar outlines are seen in the brighter central region of the nebula in this impressive wide-angle view. But the composite image combines many short and long exposures to also reveal an extremely faint outer halo. At an estimated distance of 3,000 light-years, the faint outer halo is over 5 light-years across. Planetary nebulae have long been appreciated as a final phase in the life of a sun-like star. More recently, some planetary nebulae are found to have halos like this...
  • Astronomy Picture of the Day -- The Great Carina Nebula

    05/28/2016 4:14:03 PM PDT · by SunkenCiv · 10 replies
    NASA ^ | Friday, May 27, 2016 | (see photo credit)
    Explanation: A jewel of the southern sky, the Great Carina Nebula, also known as NGC 3372, spans over 300 light-years, one of our galaxy's largest star forming regions. Like the smaller, more northerly Great Orion Nebula, the Carina Nebula is easily visible to the unaided eye, though at a distance of 7,500 light-years it is some 5 times farther away. This gorgeous telescopic close-up reveals remarkable details of the region's central glowing filaments of interstellar gas and obscuring cosmic dust clouds. The field of view is over 50 light-years across. The Carina Nebula is home to young, extremely massive stars,...
  • Why Stephen Hawking Actually Believes In God

    05/27/2016 8:56:34 PM PDT · by amessenger4god · 44 replies
    Unsealed.org ^ | 5/27/2016 | Gary
    Stephen Hawking, smarter and wiser than many of his colleagues, admits the obvious - that the probability of our universe supporting life is infinitesimally small.  His anything-but-God workaround is simply to propose a near infinite number of universes to solve the problem - if the probability of biological life coming into existence in our universe via purely natural mechanisms is next to nil (which it is) than throw a few septillion parallel universes into the mix and eventually one or two might generate life.  Out of those literally countless universes we just happen to be lucky enough to have been...
  • Astronomy Picture of the Day -- IC 5067 in the Pelican Nebula

    05/26/2016 5:23:38 AM PDT · by SunkenCiv · 17 replies
    NASA ^ | Thursday, May 26, 2016 | (see photo credit)
    Explanation: The prominent ridge of emission featured in this sharp, colorful skyscape is cataloged as IC 5067. Part of a larger emission nebula with a distinctive shape, popularly called The Pelican Nebula, the ridge spans about 10 light-years following the curve of the cosmic pelican's head and neck. This false-color view also translates the pervasive glow of narrow emission lines from atoms in the nebula to a color palette made popular in Hubble Space Telescope images of star forming regions. Fantastic, dark shapes inhabiting the 1/2 degree wide field are clouds of cool gas and dust sculpted by the winds...
  • Astronomy Picture of the Day -- NGC 5078 and Friends

    05/25/2016 3:16:55 PM PDT · by SunkenCiv · 1 replies
    NASA ^ | Wednesday, May 25, 2016 | (see photo credit)
    Explanation: This sharp telescopic field of view holds two bright galaxies. Barred spiral NGC 5101 (top right) and nearly edge-on system NGC 5078 are separated on the sky by about 0.5 degrees or about the apparent width of a full moon. Found within the boundaries of the serpentine constellation Hydra, both are estimated to be around 90 million light-years away and similar in size to our own large Milky Way galaxy. In fact, if they both lie at the same distance their projected separation would be only 800,000 light-years or so. That's easily less than half the distance between the...
  • Astronomy Picture of the Day -- Milky Way Over the Spanish Peaks

    05/24/2016 4:28:10 AM PDT · by SunkenCiv · 14 replies
    NASA ^ | Tuesday, May 24, 2016 | (see photo credit)
    Explanation: That's not lightning, and it did not strike between those mountains. The diagonal band is actually the central band of our Milky Way Galaxy, while the twin peaks are actually called the Spanish Peaks -- but located in Colorado, USA. Although each Spanish peak is composed of a slightly different type of rock, both are approximately 25 million years old. This serene yet spirited image composite was meticulously created by merging a series of images all taken from the same location on one night and early last month. In the first series of exposures, the background sky was built...
  • Astronomy Picture of the Day -- Inside a Daya Bay Antineutrino Detector

    05/22/2016 9:30:47 PM PDT · by SunkenCiv · 7 replies
    NASA ^ | Monday, May 23, 2016 | (see photo credit)
    Explanation: Why is there more matter than antimatter in the Universe? To better understand this facet of basic physics, energy departments in China and the USA led in the creation of the Daya Bay Reactor Neutrino Experiment. Located under thick rock about 50 kilometers northeast of Hong Kong, China, eight Daya Bay detectors monitor antineutrinos emitted by six nearby nuclear reactors. Featured here, a camera looks along one of the Daya Bay detectors, imaging photon sensors that pick up faint light emitted by antineutrinos interacting with fluids in the detector. Early results indicate an unexpectedly high rate of one type...
  • Astronomy Picture of the Day -- LL Orionis: When Cosmic Winds Collide

    05/22/2016 5:31:41 AM PDT · by SunkenCiv · 5 replies
    NASA ^ | Sunday, May 22, 2016 | (see photo credit)
    Explanation: What created this great arc in space? This arcing, graceful structure is actually a bow shock about half a light-year across, created as the wind from young star LL Orionis collides with the Orion Nebula flow. Adrift in Orion's stellar nursery and still in its formative years, variable star LL Orionis produces a wind more energetic than the wind from our own middle-aged sun. As the fast stellar wind runs into slow moving gas a shock front is formed, analogous to the bow wave of a boat moving through water or a plane traveling at supersonic speed. The slower...
  • Astronomy Picture of the Day -- Milky Way and Planets Near Opposition

    05/21/2016 12:47:18 PM PDT · by SunkenCiv · 6 replies
    NASA ^ | Saturday, May 21, 2016 | (see photo credit)
    Explanation: In this early May night skyscape, a mountain road near Bursa, Turkey seems to lead toward bright planets Mars and Saturn and the center of our Milky Way Galaxy, a direction nearly opposite the Sun in planet Earth's sky. The brightest celestial beacon on the scene, Mars, reaches its opposition tonight and Saturn in early June. Both will remain nearly opposite the Sun, up all night and close to Earth for the coming weeks, so the time is right for good telescopic viewing. Mars and Saturn form the tight celestial triangle with red giant star Antares just right of...
  • Astronomy Picture of the Day -- 3D Mercury Transit

    05/20/2016 10:54:00 AM PDT · by SunkenCiv · 5 replies
    NASA ^ | Friday, May 20, 2016 | (see photo credit)
    Explanation: On May 9, innermost planet Mercury crossed IN FRONT of the Sun. Though pictures project the event in only two dimensions, a remarkable three dimensional perspective on the transit is possible by free viewing this stereo pair. The images were made 23 minutes apart and rotated so that Mercury's position shifts horizontally between the two. As a result, Mercury's orbital motion produced an exaggerated parallax simulating binocular vision. Between the two exposures, the appropriately named planet's speedy 47.4 kilometer per second orbital velocity actually carried it over 65,000 kilometers. Taken first, the left image is intended for the right...
  • Who Are the Real Deniers of Science?

    05/20/2016 5:51:51 AM PDT · by Kaslin · 18 replies
    Townhall.com ^ | May 20, 2016 | Jonah Goldberg
    Why do liberals hate science? The left has long claimed that it has something of a monopoly on scientific expertise. For instance, long before Al Gore started making millions by claiming that anyone who disagreed with his apocalyptic prophecies was "anti-science," there were the "scientific socialists." "Social engineer" is now rightly seen as a term of scorn and derision, but it was once a label that progressive eggheads eagerly accepted. Masking opinions in a white smock is a brilliant, albeit infuriating and shabby, rhetorical tactic. As the late Daniel Patrick Moynihan famously said, "Everyone is entitled to his own opinion,...
  • Astronomy Picture of the Day -- The Surface of Europa

    05/19/2016 10:17:59 AM PDT · by SunkenCiv · 11 replies
    NASA ^ | Thursday, May 19, 2016 | (see photo credit)
    Explanation: An enhanced-color view, this image covers a 350 by 750 kilometer swath across the surface of Jupiter's tantalizing moon Europa. The close-up combines high-resolution image data with lower resolution color data from observations made in 1998 by the Galileo spacecraft. Smooth ice plains, long fractures, and jumbled blocks of chaos terrain are thought to hide a deep ocean of salty liquid water beneath. Though the ice-covered alien ocean world is outside the Solar System's habitable zone, new studies show the potential chemistry driving its oxygen and hydrogen production, a key indicator of the energy available for life, could produce...
  • Astronomy Picture of the Day -- Halo from Atacama

    05/18/2016 10:27:18 AM PDT · by SunkenCiv · 3 replies
    NASA ^ | Wednesday, May 18, 2016 | (see photo credit)
    Explanation: Influenced by the strong Pacific El Nino, cloudy skies have more often come to Chile's high Atacama Desert this season, despite its reputation as an astronomer's paradise. Located in one of the driest, darkest places on planet Earth, domes of the region's twin 6.5 meter Magellan telescopes of Carnegie Las Campanas Observatory were closed on May 13. Still, a first quarter Moon and bright stars shine through in this panoramic night skyscape, the lunar disk surrounded by a beautiful, bright halo. The angular radius of the halo is 22 degrees. Not determined by the brightness or phase of the...
  • Full-Scale Production of Plutonium Spacecraft Fuel Still Years Away

    05/17/2016 6:19:08 PM PDT · by Sawdring · 18 replies
    Space.Com ^ | May 17, 2016 | Mike Wall
    The United States has begun manufacturing nuclear spacecraft fuel for the first time in a generation, but full production of the stuff is still seven years or so away. In December, officials at the Department of Energy's (DOE) Oak Ridge National Laboratory in Tennessee announced that researchers at the site had generated a 1.8-ounce (50 grams) sample of plutonium-238, the fuel that powers deep-space missions such as NASA's New Horizons Pluto probe and Cassini Saturn orbiter.
  • Astronomy Picture of the Day -- The Orion Nebula in Visible and Infrared

    05/17/2016 2:52:36 PM PDT · by SunkenCiv · 9 replies
    NASA ^ | Tuesday, May 17, 2016 | (see photo credit)
    Explanation: The Great Nebula in Orion is a colorful place. Visible to the unaided eye, it appears as a small fuzzy patch in the constellation of Orion. Long exposure, multi-wavelength images like this, however, show the Orion Nebula to be a busy neighborhood of young stars, hot gas, and dark dust. This digital composite features not only three colors of visible light but four colors of infrared light taken by NASA's orbiting Spitzer Space Telescope as well. The power behind much of the Orion Nebula (M42) is the Trapezium - four of the brightest stars in the nebula. Many of...
  • Scientists Enlist Dogs to Fetch Answers on Extending Life

    05/16/2016 12:38:40 PM PDT · by Gennie · 10 replies
    The New York Times ^ | May 1 6, 2016 | Amy Harmon
    SEATTLE — Ever since last summer, when Lynn Gemmell’s dog was inducted into the trial of a drug that has been shown to significantly lengthen the lives of laboratory mice, she has been the object of intense scrutiny among dog park regulars. To those who insist that Bela, 8, has turned back into a puppy — “Look how fast she’s getting that ball!” — Ms. Gemmell has tried to turn a deaf ear. Bela, a Border collie-Australian shepherd mix, may have been given a placebo, for one thing. The drug, rapamycin, which improved the heart health and appeared to delay...
  • Astronomy Picture of the Day -- Clouds of the Carina Nebula

    05/16/2016 6:15:36 AM PDT · by SunkenCiv · 9 replies
    NASA ^ | Monday, May 16, 2016 | (see photo credit)
    Explanation: What forms lurk in the mists of the Carina Nebula? The dark ominous figures are actually molecular clouds, knots of molecular gas and dust so thick they have become opaque. In comparison, however, these clouds are typically much less dense than Earth's atmosphere. Featured here is a detailed image of the core of the Carina Nebula, a part where both dark and colorful clouds of gas and dust are particularly prominent. The image was captured last month from Siding Spring Observatory in Australia. Although the nebula is predominantly composed of hydrogen gas -- here colored green, the image was...
  • Astronomy Picture of the Day -- Milky Way Over Quiver Tree Forest

    05/15/2016 3:40:02 PM PDT · by SunkenCiv · 8 replies
    NASA ^ | Sunday, May 15, 2016 | (see photo credit)
    Explanation: In front of a famous background of stars and galaxies lies some of Earth's more unusual trees. Known as quiver trees, they are actually succulent aloe plants that can grow to tree-like proportions. The quiver tree name is derived from the historical usefulness of their hollowed branches as dart holders. Occurring primarily in southern Africa, the trees pictured in the above 16-exposure composite are in Quiver Tree Forest located in southern Namibia. Some of the tallest quiver trees in the park are estimated to be about 300 years old. Behind the trees is light from the small town of...
  • Astronomy Picture of the Day -- Falcon 9 and Milky Way

    05/14/2016 1:08:21 PM PDT · by SunkenCiv · 9 replies
    NASA ^ | Saturday, May 14, 2016 | (see photo credit)
    Explanation: On May 6, the after midnight launch of a SpaceX Falcon 9 rocket lit up dark skies over Merritt Island, planet Earth. Its second stage bound for Earth orbit, the rocket's arc seems to be on course for the center of the Milky Way in this pleasing composite image looking toward the southeast. Two consecutive exposures made with camera fixed to a tripod were combined to follow rocket and home galaxy. A 3 minute long exposure at low sensitivity allowed the rocket's first stage burn to trace the bright orange arc and a 30 second exposure at high sensitivity...
  • Astronomy Picture of the Day -- ISS and Mercury Too

    05/14/2016 1:03:04 PM PDT · by SunkenCiv · 3 replies
    NASA ^ | Friday, May 13, 2016 | (see photo credit)
    Explanation: Transits of Mercury are relatively rare. Monday's leisurely 7.5 hour long event was only the 2nd of 14 Mercury transits in the 21st century. If you're willing to travel, transits of the International Space Station can be more frequent though, and much quicker. This sharp video frame composite was taken from a well-chosen location in Philadelphia, USA. It follows the space station, moving from upper right to lower left, as it crossed the Sun's disk in 0.6 seconds. Mercury too is included as the small, round, almost stationary silhouette just below center. In apparent size, the International Space Station...
  • Astronomy Picture of the Day -- A Transit of Mercury

    05/12/2016 4:52:01 AM PDT · by SunkenCiv · 9 replies
    NASA ^ | Thursday, May 12, 2016 | (see photo credit)
    Explanation: On May 9, the diminutive disk of Mercury spent about seven and a half hours crossing in front of the Sun as viewed from the general vicinity of Earth. It was the second of 14 transits of the Solar System's innermost planet in the 21st century. Captured from Fulham, London, England, planet Earth the tiny silhouette shares the enormous solar disk with prominences, filaments, and active regions in this sharp image. But Mercury's round disk (left of center) appears to be the only dark spot, despite the planet-sized sunspots scattered across the Sun. Made with an H-alpha filter that...
  • Astronomy Picture of the Day -- A Mercury Transit Music Video from SDO

    05/11/2016 1:52:06 PM PDT · by SunkenCiv · 3 replies
    NASA ^ | Wednesday, May 11, 2016 | (see photo credit)
    Explanation: What's that small black dot moving across the Sun? Mercury. Possibly the clearest view of Mercury crossing in front of the Sun earlier this week was from Earth orbit. The Solar Dynamics Observatory obtained an uninterrupted vista recording it not only in optical light but also in bands of ultraviolet light. Featured here is a composite movie of the crossing set to music. Although the event might prove successful scientifically for better determining components of Mercury' ultra-thin atmosphere, the event surely proved successful culturally by involving people throughout the world in observing a rare astronomical phenomenon. Many spectacular images...
  • Astronomy Picture of the Day -- Saturn and Mars visit Milky Way Star Clouds

    05/10/2016 4:57:55 AM PDT · by SunkenCiv · 4 replies
    NASA ^ | Tuesday, May 10, 2016 | (see photo credit)
    Explanation: Planets, stars, nebulas and a galaxy -- this impressive image has them all. Closest to home are the two planets Mars (right) and Saturn (center), visible as the two bright orange spots in the upper half of the featured image. On the central right are the colorful Rho Ophiuchus star clouds featuring the bright orange star Antares lined up below Mars. These interstellar clouds contain both red emission nebulas and blue reflection nebulas. At the top right of the image is the Blue Horsehead reflection nebula. On the lower left are many dark absorption nebulas that extend from the...
  • Astronomy Picture of the Day -- Webb Telescope Mirror Rises after Assembly

    05/10/2016 4:54:25 AM PDT · by SunkenCiv · 10 replies
    NASA ^ | Monday, May 09, 2016 | (see photo credit)
    Explanation: Move over Hubble -- here comes the James Webb Space Telescope (JWST). JWST promises to be the new most powerful telescope in space. In the last month, the 18-segment gold-plated primary mirror for JWST was unveiled. In the featured time-lapse video taken last week, the 6.5-meter diameter mirror was raised to a vertical position. The dramatic 30-second sequence shows NASA engineers monitoring the test as room lights glint brightly off the mirror's highly reflective surface. The beryllium mirrors have been coated with a thin film of gold to make them more reflective to infrared light. The science goals of...
  • Astronomy Picture of the Day -- Mercury's Transit: An Unusual Spot on the Sun

    05/10/2016 4:51:35 AM PDT · by SunkenCiv · 3 replies
    NASA ^ | Sunday, May 08, 2016 | (see photo credit)
    Explanation: What's that dot on the Sun? If you look closely, it is almost perfectly round. The dot is the result of an unusual type of solar eclipse that occurred in 2006. Usually it is the Earth's Moon that eclipses the Sun. This time, the planet Mercury took a turn. Like the approach to New Moon before a solar eclipse, the phase of Mercury became a continually thinner crescent as the planet progressed toward an alignment with the Sun. Eventually the phase of Mercury dropped to zero and the dark spot of Mercury crossed our parent star. The situation could...
  • Astronomy Picture of the Day -- Three Worlds for TRAPPIST-1

    05/07/2016 5:39:19 PM PDT · by SunkenCiv · 3 replies
    NASA ^ | Saturday, May 07, 2016 | (see photo credit)
    Explanation: Three new found worlds orbit the ultracool dwarf star TRAPPIST-1, a mere 40 light-years away. Their transits were first detected by the Belgian robotic TRAnsiting Planets and Planetesimals Small Telescope, TRAPPIST, at ESO's La Silla Observatory in Chile. The newly discovered exoplanets are all similar in size to Earth. Because they orbit very close to their faint, tiny star they could also have regions where surface temperatures allow for the presence of liquid water, a key ingredient for life. Their tantalizing proximity to Earth makes them prime candidates for future telescopic explorations of the atmospheres of these potentially habitable...
  • Astronomy Picture of the Day -- NGC 7023: The Iris Nebula

    05/06/2016 5:51:52 AM PDT · by SunkenCiv · 5 replies
    NASA ^ | Friday, May 06, 2016 | (see photo credit)
    Explanation: These cosmic clouds have blossomed 1,300 light-years away, in the fertile starfields of the constellation Cepheus. Called the Iris Nebula, NGC 7023 is not the only nebula to evoke the imagery of flowers, though. Still, this deep telescopic image shows off the Iris Nebula's range of colors and symmetries, embedded in surrounding fields of interstellar dust. Within the Iris itself, dusty nebular material surrounds a hot, young star. The dominant color of the brighter reflection nebula is blue, characteristic of dust grains reflecting starlight. Central filaments of the reflection nebula glow with a faint reddish photoluminesence as some dust...
  • Chimeras, Werewolves, and Pigmen Oh My! Science Stranger than Fiction

    05/05/2016 10:47:12 AM PDT · by Stand Up For America Today · 12 replies
    Stand Up For America Today ^ | 5/5/2016 | AJ Watson
    For those of us who remember bits and pieces of Greek mythology, or who play lots of role playing video games, a Chimera was a monstrous hybrid creature often depicted as part lion, part goat, and part snake. In today’s world however Chimeras are very real and in this writer’s humble opinion, very disturbing. The word Chimera today refers most often to animals that are gene spliced with other animals creating a kind of hybrid species. As if this attempt at playing God isn’t alarming enough, human cells are being added to pigs, sheep, goats, mice, and other animals that...
  • Astronomy Picture of the Day -- The SONG and the Hunter

    05/05/2016 6:49:49 AM PDT · by SunkenCiv · 3 replies
    NASA ^ | Thursday, May 05, 2016 | (see photo credit)
    Explanation: Near first quarter, the Moon in March lights this snowy, rugged landscape, a view across the top of Tenerife toward La Palma in the Canary Islands Spanish archipelago. The large Teide volcano, the highest point in Spain, looms over the horizon. Shining above are familiar bright stars of Orion, the Hunter. Adding to the dreamlike scene is the 1 meter diameter prototype telescope of the global network project called the Stellar Observations Network Group or SONG. The SONG's fully robotic observatory was captured during the 30 second exposure while the observatory dome, with slit open, was rotated across the...
  • Astronomy Picture of the Day -- A Mercury Transit Sequence

    05/03/2016 11:41:56 PM PDT · by SunkenCiv · 5 replies
    NASA ^ | Wednesday, May 04, 2016 | (see photo credit)
    Explanation: This coming Monday, Mercury will cross the face of the Sun, as seen from Earth. Called a transit, the last time this happened was in 2006. Because the plane of Mercury's orbit is not exactly coincident with the plane of Earth's orbit, Mercury usually appears to pass over or under the Sun. The above time-lapse sequence, superimposed on a single frame, was taken from a balcony in Belgium shows the entire transit of 2003 May 7. The solar crossing lasted over five hours, so that the above 23 images were taken roughly 15 minutes apart. The north pole of...
  • Astronomy Picture of the Day -- Aurora over Sweden

    05/03/2016 12:44:34 AM PDT · by SunkenCiv · 8 replies
    NASA ^ | Tuesday, May 03, 2016 | (see photo credit)
    Explanation: It was bright and green and stretched across the sky. This striking aurora display was captured last month just outside of Östersund, Sweden. Six photographic fields were merged to create the featured panorama spanning almost 180 degrees. Particularly striking aspects of this aurora include its sweeping arc-like shape and its stark definition. Lake Storsjön is seen in the foreground, while several familiar constellations and the star Polaris are visible through the aurora, far in the background. Coincidently, the aurora appears to avoid the Moon visible on the lower left. The aurora appeared a day after a large hole opened...
  • Astronomy Picture of the Day -- Crossing Mars

    05/03/2016 12:36:30 AM PDT · by SunkenCiv · 5 replies
    NASA ^ | Monday, May 02, 2016 | (see photo credit)
    Explanation: Where is NASA's rover Curiosity going on Mars? Its geographical goals are on the slopes of Mount Sharp, whose peak is seen in the background on the right. A key scientific goal, however, remains to better assess when and where conditions on Mars were once suitable for life, in particular microbial life. To further this goal, Curiosity was directed to cross the rugged terrain of Nautkluft Plateau, visible in the featured image on the foreground left. Curiosity is crossing toward smoother uphill sites with rocks containing hematite and sulfates, sites that could give the rolling rover new clues on...
  • Astronomy Picture of the Day -- Contemplating the Sun

    05/03/2016 12:35:51 AM PDT · by SunkenCiv · 5 replies
    NASA ^ | Sunday, May 01, 2016 | (see photo credit)
    Explanation: Have you contemplated your home star recently? Featured here, a Sun partially eclipsed on the top left by the Moon is also seen eclipsed by earthlings contemplating the eclipse below. The spectacular menagerie of silhouettes was taken in 2012 from the Glen Canyon National Recreation Area near Page, Arizona, USA, where park rangers and astronomers expounded on the unusual event to interested gatherers. Also faintly visible on the Sun's disk, just to the lower right of the dark Moon's disk, is a group of sunspots. Although a partial solar eclipse by the Moon is indeed a good chance to...
  • Weather Channel founder calls Bill Nye ‘a pretend scientist in a bow tie’

    05/02/2016 6:12:31 PM PDT · by ghosthost · 23 replies
    NY Post ^ | 4-29-2016 | Natalie O'Neill
    “I have always been amazed that anyone would pay attention to Bill Nye, a pretend scientist in a bow tie,” Coleman said Friday, according to ClimateDepot.com. “As a man who has studied the science of meteorology for over 60 years and received the AMS (American Meteorological Society’s) ‘Meteorologist of the Year’ award, I am totally offended that Nye gets the press and media attention he does. And I am rooting for the ‘Climate Hustle’ film to become a huge hit — bigger than ‘An Inconvenient Truth’ by Al Gore,” Coleman said.
  • Astronomy Picture of the Day -- Moon over Makemake

    04/30/2016 2:03:40 PM PDT · by SunkenCiv · 8 replies
    NASA ^ | Saturday, April 30, 2016 | (see photo credit)
    Explanation: Makemake, second brightest dwarf planet of the Kuiper belt, has a moon. Nicknamed MK2, Makemake's moon reflects sunlight with a charcoal-dark surface, about 1,300 times fainter than its parent body. Still, it was spotted in Hubble Space Telescope observations intended to search for faint companions with the same technique used to find the small satellites of Pluto. Just as for Pluto and its satellites, further observations of Makemake and orbiting moon will measure the system's mass and density and allow a broader understanding of the distant worlds. About 160 kilometers (100 miles) across compared to Makemake's 1,400 kilometer diameter,...
  • Astronomy Picture of the Day -- Fermi's Gamma-ray Moon

    04/29/2016 5:07:09 AM PDT · by SunkenCiv · 20 replies
    NASA ^ | Friday, April 29, 2016 | (see photo credit)
    Explanation: If you could only see gamma-rays, photons with up to a billion or more times the energy of visible light, the Moon would be brighter than the Sun! That startling notion underlies this novel image of the Moon, based on data collected by the Fermi Gamma-ray Space Telescope's Large Area Telescope (LAT) instrument during its first seven years of operation (2008-2015). Fermi's gamma-ray vision doesn't distinguish details on the lunar surface, but a gamma-ray glow consistent with the Moon's size and position is clearly found at the center of the false color map. The brightest pixels correspond to the...
  • Bizarre fourth state of water discovered

    04/28/2016 6:22:09 AM PDT · by Hostage · 56 replies
    gizmag ^ | April 26, 2016 | Michael Franco
    You already know that water can have three states of matter: solid, liquid and gas. But scientists at the Oak Ridge National Lab (ORNL) have discovered that when it's put under extreme pressure in small spaces, the life-giving liquid can exhibit a strange fourth state known as tunneling. The water under question was found in super-small six-sided channels in the mineral beryl, which forms the basis for the gems aquamarine and emerald. The channels measure only about five atoms across and function basically as cages that can each trap one water molecule. What the researchers found was that in this...
  • Astronomy Picture of the Day -- A Dust Angel Nebula

    04/28/2016 4:21:53 AM PDT · by SunkenCiv · 3 replies
    NASA ^ | Thursday, April 28, 2016 | (see photo credit)
    Explanation: The combined light of stars along the Milky Way are reflected by these cosmic dust clouds that soar some 300 light-years or so above the plane of our galaxy. Dubbed the Angel Nebula, the faint apparition is part of an expansive complex of dim and relatively unexplored, diffuse molecular clouds. Commonly found at high galactic latitudes, the dusty galactic cirrus can be traced over large regions toward the North and South Galactic poles. Along with the refection of starlight, studies indicate the dust clouds produce a faint reddish luminescence, as interstellar dust grains convert invisible ultraviolet radiation to visible...
  • Occasional Birdy Thread

    04/27/2016 9:42:40 AM PDT · by Engraved-on-His-hands · 28 replies
    Engraved-on-His-hands | April 27, 2016 | Engraved-on-His-hands
    With apologies to Islander7, but I haven't seen an “Occasional Birdy Thread” in awhile, so I thought that I would post one. My pictures aren't as great as those posted by Islander7 or fidelis, but it's kind of like singing. All that you really need to do is to sing (or take bird pictures) well enough to entertain yourself. Blue-winged Teal Greater Yellowlegs Greater Yellowlegs with Blue-winged Teal Greater Yellowlegs Blue-gray Gnatcatcher Osprey Eastern Phoebe Solitary Sandpiper
  • Astronomy Picture of the Day -- Omega Centauri: The Brightest Globular Star Cluster

    04/27/2016 4:48:35 AM PDT · by SunkenCiv · 9 replies
    NASA ^ | Wednesday, April 27, 2016 | (see photo credit)
    Explanation: This huge ball of stars predates our Sun. Long before humankind evolved, before dinosaurs roamed, and even before our Earth existed, ancient globs of stars condensed and orbited a young Milky Way Galaxy. Of the 200 or so globular clusters that survive today, Omega Centauri is the largest, containing over ten million stars. Omega Centauri is also the brightest globular cluster, at apparent visual magnitude 3.9 it is visible to southern observers with the unaided eye. Cataloged as NGC 5139, Omega Centauri is about 18,000 light-years away and 150 light-years in diameter. Unlike many other globular clusters, the stars...
  • Astronomy Picture of the Day -- NGC 6872: A Stretched Spiral Galaxy

    04/26/2016 11:24:02 AM PDT · by SunkenCiv · 2 replies
    NASA ^ | Tuesday, April 26, 2016 | (see photo credit)
    Explanation: What makes this spiral galaxy so long? Measuring over 700,000 light years across from top to bottom, NGC 6872, also known as the Condor galaxy, is one of the most elongated barred spiral galaxies known. The galaxy's protracted shape likely results from its continuing collision with the smaller galaxy IC 4970, visible just above center. Of particular interest is NGC 6872's spiral arm on the upper left, as pictured here, which exhibits an unusually high amount of blue star forming regions. The light we see today left these colliding giants before the days of the dinosaurs, about 300 million...
  • Astronomy Picture of the Day -- Supernova Remnant Simeis 147: The Spaghetti Nebula

    04/26/2016 11:21:23 AM PDT · by SunkenCiv · 6 replies
    NASA ^ | Monday, April 25, 2016 | (see photo credit)
    Explanation: It's easy to get lost following the intricate strands of the Spaghetti Nebula. A supernova remnant cataloged as Simeis 147 and Sh2-240, the glowing gas filaments cover nearly 3 degrees -- 6 full moons -- on the sky. That's about 150 light-years at the stellar debris cloud's estimated distance of 3,000 light-years. This sharp composite includes image data taken through a narrow-band filter to highlight emission from hydrogen atoms tracing the shocked, glowing gas. The supernova remnant has an estimated age of about 40,000 years, meaning light from the massive stellar explosion first reached Earth about 40,000 years ago....
  • Astronomy Picture of the Day -- M16: Pillars of Star Creation

    04/24/2016 7:22:41 AM PDT · by SunkenCiv · 12 replies
    NASA ^ | Sunday, April 24, 2016 | (see photo credit)
    Explanation: Newborn stars are forming in the Eagle Nebula. This image, taken with the Hubble Space Telescope in 1995, shows evaporating gaseous globules (EGGs) emerging from pillars of molecular hydrogen gas and dust. The giant pillars are light years in length and are so dense that interior gas contracts gravitationally to form stars. At each pillars' end, the intense radiation of bright young stars causes low density material to boil away, leaving stellar nurseries of dense EGGs exposed. The Eagle Nebula, associated with the open star cluster M16, lies about 7000 light years away. The pillars of creation were imaged...
  • Astronomy Picture of the Day -- Milky Way in Moonlight

    04/23/2016 11:47:17 AM PDT · by SunkenCiv · 4 replies
    NASA ^ | Saturday, April 23, 2016 | (see photo credit)
    Explanation: A waning crescent moon, early morning twilight, and Al Hamra's city lights on the horizon can't hide the central Milky Way in this skyscape from planet Earth. Captured in a single exposure, the dreamlike scene looks southward across the region's grand canyon from Jabal Shams (Sun Mountain), near the highest peak in Oman, on the Arabian Peninsula. Mist, moonlight, and shadows still play along the steep canyon walls. Dark rifts along the luminous band of the Milky Way are the galaxy's cosmic dust clouds. Typically hundreds of light-years distant, they obscure starlight along the galactic plane, viewed edge-on from...
  • Seven Earth Day predictions that failed spectacularly

    04/22/2016 9:39:01 PM PDT · by Stand Watch Listen · 18 replies
    wattsupwiththat.com ^ | April 22, 2016 | Anthony Watt
    Never Trust The Doom-Mongers: Earth Day Predictions That Were All WrongEnvironmentalists truly believed and predicted that the planet was doomed during the first Earth Day in 1970, unless drastic actions were taken to save it. Humanity never quite got around to that drastic action, but environmentalists still recall the first Earth Day fondly and hold many of the predictions in high regard. So this Earth Day, The Daily Caller News Foundation takes a look at predictions made by environmentalists around the original Earth Day in 1970 to see how they’ve held up. 1: (1970) “Civilization Will End Within 15 or...
  • Hubble captures birthday bubble

    04/21/2016 10:07:08 AM PDT · by Red Badger · 7 replies
    phys.org ^ | April 21, 2016 | Provided by: ESA/Hubble Information Centre
    The Bubble Nebula, also known as NGC 7653, is an emission nebula located 11,000 light-years away. This stunning new image was observed by the NASA/ESA Hubble Space Telescope to celebrate its 26th year in space. Credit: NASA, ESA, Hubble Heritage Team =============================================================================================================== This new NASA/ESA Hubble Space Telescope image, released to celebrate Hubble's 26th year in orbit, captures in stunning clarity what looks like a gigantic cosmic soap bubble. The object, known as the Bubble Nebula, is in fact a cloud of gas and dust illuminated by the brilliant star within it. The vivid new portrait of this dramatic scene...
  • Astronomy Picture of the Day -- NGC 7635: The Bubble Nebula

    04/22/2016 6:42:44 AM PDT · by SunkenCiv · 3 replies
    NASA ^ | Friday, April 22, 2016 | (see photo credit)
    Explanation: Blown by the wind from a massive star, this interstellar apparition has a surprisingly familiar shape. Cataloged as NGC 7635, it is also known simply as The Bubble Nebula. Although it looks delicate, the 7 light-year diameter bubble offers evidence of violent processes at work. Above and left of the Bubble's center is a hot, O-type star, several hundred thousand times more luminous and around 45 times more massive than the Sun. A fierce stellar wind and intense radiation from that star has blasted out the structure of glowing gas against denser material in a surrounding molecular cloud. The...
  • Astronomy Picture of the Day -- The Comet, the Owl, and the Galaxy

    04/21/2016 1:45:26 PM PDT · by SunkenCiv · 3 replies
    NASA ^ | Thursday, April 21, 2016 | (see photo credit)
    Explanation: Comet C/2014 S2 (PanSTARRS) poses for a Messier moment in this telescopic snapshot from April 18. In fact it shares the 1.5 degree wide field-of-view with two well-known entries in the 18th century comet-hunting astronomer's famous catalog. Outward bound and sweeping through northern skies just below the Big Dipper, the fading visitor to the inner Solar System was about 18 light-minutes from our fair planet. Dusty, edge-on spiral galaxy Messier 108 (upper right) is more like 45 million light-years away. A planetary nebula with an aging but intensely hot central star, the owlish Messier 97 is only about 12...
  • Astronomy Picture of the Day -- Galaxy Einstein Ring

    04/21/2016 1:43:17 PM PDT · by SunkenCiv · 5 replies
    NASA ^ | Wednesday, April 20, 2016 | (see photo credit)
    Explanation: Can one galaxy hide behind another? Not in the case of SDP.81. Here the foreground galaxy, shown in blue in an image taken by the Hubble Space Telescope, acts like a huge gravitational lens, pulling light from a background galaxy, shown in red in an image taken in radio waves by the Atacama Large Millimeter Array (ALMA), around it, keeping it visible. The alignment is so precise that the distant galaxy is distorted into part of a ring around the foreground galaxy, a formation known as an Einstein ring. Detailed analysis of the gravitational lens distortions indicate that a...
  • Police: Man claiming to be from the future steals food from Arby's (Could it be?)

    04/20/2016 5:39:47 PM PDT · by ghosthost · 61 replies
    Fox News ^ | 4-18-2016 | Austin Prickitt
    The Arby's manager told police Anderson jumped on the front counter and demanded food. The man then jumped off the counter and allegedly grabbed the manager and forced her towards a wall. The manager told police the man then grabbed a hand full of bacon and chicken and walked out of the business. "He was possibly under the influence of some sort of narcotic or intoxicant or suffering from some type of break with reality. He did mention that he is from four years in the future and that is how people will get food during that period of time,"...