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Keyword: science

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  • Did a Planetary Society citizen scientist help find one of Earth’s biggest impact craters?

    07/03/2017 12:22:01 AM PDT · by LibWhacker · 18 replies
    Planetary Society ^ | 6/12/17 | Jason Davis
    Did a Planetary Society citizen scientist help find one of Earth’s biggest impact craters? About 66 million years ago, a 10-kilometer-wide hunk of rock smashed into Earth near what is now Mexico's Yucatán Peninsula.The impact created a global dust cloud that snuffed out the sunlight, leading to the demise of 80 percent of Earth's plants and animals—including most of the dinosaurs. A 200-kilometer-wide crater buried near the city of Chicxulub is all that's left. It's ground zero for one of the world's most notable extinction events.But throughout Earth's history, there have actually been five major extinction events. The largest of...
  • Asteroid strike made 'instant Himalayas'

    11/18/2016 9:20:25 PM PST · by MtnClimber · 30 replies
    BBC ^ | 18 Nov, 2916 | Jonathan Amos BBC Science Correspondent
    Scientists say they can now describe in detail how the asteroid that wiped out the dinosaurs produced its huge crater. The reconstruction of the event 66 million years ago was made possible by drilling into the remnant bowl and analysing its rocks. These show how the space impactor made the hard surface of the planet slosh back and forth like a fluid. At one stage, a mountain higher than Everest was thrown up before collapsing back into a smaller range of peaks. "And this all happens on the scale of minutes, which is quite amazing," Prof Joanna Morgan from Imperial...
  • Nope, our Temporary Moon Isn’t Space Junk, it’s an Asteroid

    10/20/2017 12:12:40 PM PDT · by BenLurkin · 9 replies
    universe today ^ | Matt Williams
    In April of 2016, astronomers became aware of a distant object that appeared to be orbiting the Sun, but was also passing close enough to Earth that it could be periodically viewed using the most powerful telescopes. Since then, there has been ample speculation as to what this “Temporary Moon” could be... ... “While HO3 is close to the Earth, its small size – possibly not larger than 100 feet – makes it challenging target to study. Our observations show that HO3 rotates once every 28 minutes and is made of materials similar to asteroids.” ... Reddy and his colleagues...
  • ‘Quasi’ Moon Discovered Orbiting Earth

    06/16/2016 10:52:20 AM PDT · by smokingfrog · 53 replies
    VOA news ^ | 6-16-16 | unattributed
    Astronomers have discovered a new “quasi” moon orbiting Earth. 2016 HO3, as the asteroid is called, is at least 40 meters across and could be larger, up to 100 meters, researchers say, but it’s too far from Earth to qualify as a true satellite or mini-moon. "Since 2016 HO3 loops around our planet, but never ventures very far away as we both go around the sun, we refer to it as a quasi-satellite of Earth," said Paul Chodas, manager of NASA's Center for Near-Earth Object (NEO) Studies at the Jet Propulsion Laboratory in Pasadena, California. "One other asteroid -- 2003...
  • The Earth and moon formed later than previously thought

    06/07/2010 5:29:41 PM PDT · by decimon · 114 replies · 95+ views
    University of Copenhagen ^ | Jun 7, 2010 | Unknown
    The Earth and Moon were created as the result of a giant collision between two planets the size of Mars and Venus. Until now it was thought to have happened when the solar system was 30 million years old or approx. 4,537 million years ago. But new research from the Niels Bohr Institute shows that the Earth and Moon must have formed much later – perhaps up to 150 million years after the formation of the solar system. The research results have been published in the scientific journal, Earth and Planetary Science Letters. "We have determined the ages of the...
  • Earth Must Have Another Moon, Say Astronomers

    12/22/2011 7:05:56 AM PST · by Lonesome in Massachussets · 44 replies
    Back in 2006, the Catalina Sky Survey in Arizona noticed that a mysterious body had begun orbiting the Earth. This object had a spectrum that was remarkably similar to the titanium white paint used on Saturn V rocket stages and, indeed, a number of rocket stages are known to orbit the Sun close to Earth. But this was not an object of ours. Instead, 2006 RH120, as it became known, turned out to be a tiny asteroid just a few metres across--a natural satellite like the Moon. It was captured by Earth's gravity in September 2006 and orbited us...
  • NASA says Mystery Object Orbits Earth

    09/20/2002 3:30:37 PM PDT · by Mark Felton · 45 replies · 549+ views
    NASA ^ | 9/20/02 | NASA
    Mystery Object Orbits Earth A puzzling object just discovered in orbit around Earth might be an Apollo rocket on a fantastic journey through the solar system. Listen to this story via streaming audio , a downloadable file , or get help . Sept. 20, 2002: Something odd is circling our planet. It's small, perhaps only 60-ft long, and rotates once every minute or so. Bill Yeung, an amateur astronomer in California, first spotted the 16th magnitude speck of light on Sept. 3rd in the constellation Pisces. He named it J002E3.Automated asteroid surveys scan the skies every few weeks, yet...
  • New 'Moon' Found Around Earth

    09/11/2002 11:35:35 AM PDT · by Cultural Jihad · 76 replies · 519+ views
    BBC ^ | September 11, 2002 | Dr David Whitehouse
    New 'moon' found around Earth There could be another one By Dr David Whitehouse BBC News Online science editor An amateur astronomer may have found another moon of the Earth. Experts say it may have only just arrived. Much uncertainty surrounds the mysterious object, designated J002E2. It could be a passing chunk of rock captured by the Earth's gravity, or it could be a discarded rocket casing coming back to our region of space. It was discovered by Bill Yeung from his observatory in Arizona and reported as a passing Near-Earth Object. It was soon realised however that far from...
  • House approves 'right to try,' sends bill to Trump's desk [147 Dems vote no]

    05/22/2018 8:24:44 PM PDT · by catnipman · 31 replies
    The Hill ^ | 5/22/2018 | Rachel Roubein
    The House sent “right to try” legislation on experimental drugs to President Trump’s desk Tuesday — a measure Trump, Vice President Pence and groups backed by mega-donors Charles and David Koch have repeatedly urged Congress to pass. The House passed the bill largely along party lines by a 250-169 [actually 267-149] vote.
  • Giant Waves Nearly Half a Million Miles Across Seen on the Sun for the First Time

    05/21/2018 9:44:47 PM PDT · by BenLurkin · 29 replies
    space.com ^ | May 21, 2018 06:24pm ET | Stephanie Pappas,
    "Solar Rossby waves are gigantic in size, with wavelengths comparable to the solar radius," study co-author Laurent Gizon, of the Max Planck Institute for Solar System Research, said in a statement. (The average radius of the sun is a whopping 432,450 miles, or 696,000 kilometers.) Even so, these waves move very slowly, with shallow troughs and peaks, so they aren't always easy to detect, especially amid the other swirls and disturbances on a body as lively as the sun. … Researchers from the Max Planck Institute for Solar System Research, the University of Göttingen (both in Germany), New York University...
  • China launch will prep for Moon landing

    05/21/2018 12:51:32 PM PDT · by Simon Green · 28 replies
    BBC ^ | 05/21/18
    China has launched a relay satellite to prepare for a lunar rover mission planned for later in the year. The Queqiao spacecraft will establish a communications link between Earth and the landing mission, which looks set to launch in the next six months. The satellite was launched at 22:28 BST on Sunday (05:28 local time) from Xichang launch centre in the country's south-west. It will settle in an orbit about 455,000 km (282,555 miles) from Earth. This orbit will also take it more than 60,000 km from the lunar farside, where China will aim to put down with a lander...
  • Tiny, Mars-bound satellite snaps its first image of Earth and the Moon

    05/20/2018 7:13:18 PM PDT · by ETL · 19 replies
    FoxNews.com/Science ^ | May 17, 2018 | Mike Wall, Space.com Senior Writer
    A tiny satellite on its way to Mars has opened its eyes and captured a view of home. One of NASA's two Mars Cube One (MarCO) cubesats, which launched toward the Red Planet along with the agency's InSight lander on May 5, took a photo on May 9 to help confirm that its high-gain antenna had deployed properly. The antenna is in the photo. And so are the moon and Earth, the latter of which appears as a pale blue dot, just as it did in a famous photo taken by NASA's Voyager 1 probe in 1990. ..." (snip) Despite...
  • It’s full of stars! NASA’s planet-hunting TESS probe sends back its first test image

    05/18/2018 8:01:22 PM PDT · by Simon Green · 21 replies
    Geekwire ^ | 05/18/18 | Alan Boyle
    One month after its launch, NASA’s Transiting Exoplanet Survey Satellite has sent back an initial test image that shows more than 200,000 stars in the southern sky. TESS’ image was taken by one of its cameras with a two-second exposure. The picture is centered on the constellation Centaurus, with the edge of the dark Coalsack Nebula at upper right and the star Beta Centauri prominent along the lower edge. The picture provides only a hint of what TESS will be seeing once it starts delivering science-quality images next month. When all four wide-field cameras are in operation, TESS’ images...
  • How NASA’s Mission to Pluto Was Nearly LostThe inside story of the New Horizons probe.

    05/18/2018 6:47:08 PM PDT · by MtnClimber · 19 replies
    On the Saturday afternoon of July 4, 2015, NASA’s New Horizons Pluto mission leader Alan Stern was in his office near the project Mission Control Center, working, when his cell phone rang. He was aware of the Independence Day holiday but was much more focused on the fact that the date was “Pluto flyby minus 10 days.”... Glancing at his ringing phone, Alan was surprised to see the caller was Glen Fountain, the longtime project manager of New Horizons. He felt a chill because he knew that Glen was taking time off for the holiday, at his nearby home, before...
  • Here's the Weird Science Launching to the Space Station on Monday

    05/18/2018 6:37:52 PM PDT · by BenLurkin · 6 replies
    Space.com ^ | May 18, 2018 11:12am ET | Chelsea Gohd, Staff Writer |
    On Monday, a cargo delivery to the International Space Station will carry old-fashioned sextants, E. colibacteria and lasers that will create a temperature 10 billion times colder than the vacuum of space. … CAL is sending the space station an experimental physics package that holds an "ice chest"-like compartment filled with lasers and electronics; the interior will be able to reach a temperature10 billion times colder than the vacuum of space, according to a NASA statement. Within this instrument, the researchers will use laser cooling techniques and magnets to slow down atoms until they are almost entirely motionless. By studying...
  • Graphene confines light to one atom to enable ultra small optical switches, detectors and sensors

    05/16/2018 4:56:57 PM PDT · by 2ndDivisionVet · 16 replies
    Next Big Future ^ | May 16, 2018 | Brian Wang
    Researchers have been able to confine light down to a space one atom, the smallest possible. This will pave the way to ultra-small optical switches, detectors and sensors. Light can function as an ultra-fast communication channel, for example between different sections of a computer chip, but it can also be used for ultra-sensitive sensors or on-chip nanoscale lasers. There is currently much research into how to further shrink devices that control and guide light. New techniques searching for ways to confine light into extremely tiny spaces, much smaller than current ones, have been on the rise. Researchers had previously found...
  • How Identity Politics Is Harming the Sciences

    05/15/2018 6:48:04 AM PDT · by reaganaut1 · 92 replies
    City Journal ^ | Spring 2018 | Heather Mac Donald
    Identity politics has engulfed the humanities and social sciences on American campuses; now it is taking over the hard sciences. The STEM fields—science, technology, engineering, and math—are under attack for being insufficiently “diverse.” The pressure to increase the representation of females, blacks, and Hispanics comes from the federal government, university administrators, and scientific societies themselves. That pressure is changing how science is taught and how scientific qualifications are evaluated. The results will be disastrous for scientific innovation and for American competitiveness. A scientist at UCLA reports: “All across the country the big question now in STEM is: how can we...
  • Congressman wants answers from USDA on cats allegedly killed during government research

    05/09/2018 4:50:28 PM PDT · by Berlin_Freeper · 21 replies
    edition.cnn.com ^ | May 9, 2018 | Juana Summers
    A Republican lawmaker wants answers from the Department of Agriculture about taxpayer-funded research experiments at a Maryland facility that have allegedly led to the deaths of hundreds of cats and kittens. Citing documents reviewed by his office, Michigan Republican Mike Bishop described a decades-old research project at the USDA's Animal Parasitic Diseases Laboratory in Beltsville, Maryland, in which hundreds of kittens are bred, fed meat that is infected with Toxoplasma, and later killed and discarded by "incineration." In a letter to Agriculture Secretary Sonny Perdue dated Monday, Bishop wrote that he was "shocked to hear that the USDA, the very...
  • The Science Is Settled: It’s Filled With Stars

    05/08/2018 6:04:57 AM PDT · by NOBO2012 · 31 replies
    MOTUS A.D. ^ | 5-8-18 | MOTUS
    “There are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns — the ones we don't know we don't know.” - Donald Rumsfeld Trenton McKinley of Mobile, Alabama, suffered severe brain trauma from a freak dune buggy accident in March. Doctors told his parents he was braindead. They said that if he survived he’d be in a vegetative state. So they signed the organ donation papers. After days of being brain dead,...
  • Cloning horror: Human clone fears as Euro scientists CREATE LIFE from ‘nothing’

    05/03/2018 6:35:45 AM PDT · by plain talk · 61 replies
    Express ^ | May 3, 2018 | Carly Read
    The experimental research combined two types of stem cells and created a viable embryo – which the team say would provide an unlimited stock for medical research. The created embryos would also be used for medical treatment testing and help shed light on one of the biggest infertility enigmas - why embryos fail to implant in the womb. However critics say it is a huge step towards human cloning. The researchers believe the wonder creation could see mice being cloned in three years time, and humans two decades later.