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Keyword: hubble

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  • Hubble captures ultraviolet portrait of Eta Carinae's fireworks

    07/02/2019 10:12:43 AM PDT · by Red Badger · 33 replies
    UPI ^ | July 1, 2019 / 3:40 PM | By Brooks Hays
    Each new image of Eta Carinae reveals new subtle details, streams of light and filaments of gas and dust, that astronomers hadn't observed before. Photo by Hubble/NASA/ESA ================================================================ July 1 (UPI) -- The Hubble Space Telescope has captured Eta Carinae's fireworks in red, white and blue, just in time for Independence Day. Eta Carinae is a binary star system located 7,500 light-years away in the Carina constellation. One of its two stars, which orbit each other, is large, highly unstable and nearing the end of its life. The dynamic stellar duo occasionally produces violent outbursts. The system's most famous outburst...
  • Hubble finds tiny 'electric soccer balls' in space, helps solve interstellar mystery

    06/28/2019 5:26:58 AM PDT · by BenLurkin · 19 replies
    phys.org ^ | 06/25/2019 | Bill Steigerwald, NASA's Goddard Space Flight Center
    Scientists using NASA's Hubble Space Telescope have confirmed the presence of electrically-charged molecules in space shaped like soccer balls, shedding light on the mysterious contents of the interstellar medium (ISM) - the gas and dust that fills interstellar space. The molecules … are a form of carbon called "Buckminsterfullerene," also known as "Buckyballs," which consists of 60 carbon atoms (C60) arranged in a hollow sphere. C60 has been found in some rare cases on Earth in rocks and minerals, and can also turn up in high-temperature combustion soot. C60 has been seen in space before. However, this is the first...
  • Hubble Reveals Dynamic Atmospheres of Uranus and Neptune

    05/04/2019 3:24:36 PM PDT · by DoodleBob · 33 replies
    Hubble Site ^ | February 7, 2019 | n/a
    Giant polar cap dominates Uranus; dark tempest is raging on Neptune. The two major planets beyond Saturn have only been visited once by a spacecraft, albeit briefly. NASA's Voyager 2 spacecraft swung by Uranus in 1986, and Neptune in 1989. Our robotic deep-space tourist snapped the only close-up, detailed images of these monstrous worlds. For Neptune, the images revealed a planet with a dynamic atmosphere with two mysterious dark vortices. Uranus, however, appeared featureless. But these views were only brief snapshots. They couldn't capture how the planets' atmospheres change over time, any more than a single snapshot of Earth...
  • “The Phantom Universe” –There’s a New ‘Unknown’ Messing with the Cosmos

    03/10/2019 1:28:42 AM PST · by LibWhacker · 39 replies
    There’s a crisis brewing in the cosmos. Measurements over the past few years of the distances and velocities of faraway galaxies don’t agree with the increasingly controversial “standard model” of the cosmos that has prevailed for the past two decades. Astronomers think that a 9 percent discrepancy in the value of a long-sought number called the Hubble Constant, which describes how fast the universe is expanding, might be revealing something new and astounding about the universe. The cosmos has been expanding for 13.8 billion years and its present rate of expansion, known as the Hubble constant, gives the time elapsed...
  • NASA accurately calculates Milky Way's weight using Gaia, Hubble telescopes

    03/09/2019 10:18:12 AM PST · by ETL · 47 replies
    FoxNews.com/Science ^ | Mar 8, 2019 | Ann W. Schmidt | Fox News
    Scientists have finally been able to accurately calculate the weight of the Milky Way, overcoming the difficult hurdle of measuring dark matter, the European Space Agency (ESA) announced Thursday. After years of struggling to estimate the size of our galaxy, astronomers with NASA and the ESA used data from the Hubble Space Telescope and the ESA’s Gaia mission to determine the Milky Way weighs about 1.5 trillion solar masses within a radius of 129,000 light years from the center. Because dark matter makes up about 90 percent of the galaxy, estimates of the Milky Way’s weight have differed widely in...
  • Hubble's dazzling display of two colliding galaxies

    03/08/2019 3:14:44 PM PST · by ETL · 64 replies
    Phys.org ^ | March 8, 2019 | Rob Garner, NASA's Goddard Space Flight Center
    Located in the constellation of Hercules, about 230 million light-years away, NGC 6052 is a pair of colliding galaxies. They were first discovered in 1784 by William Herschel and were originally classified as a single irregular galaxy because of their odd shape. However, we now know that NGC 6052 actually consists of two galaxies that are in the process of colliding. This particular image of NGC 6052 was taken using the Wide Field Camera 3 on the NASA/ESA Hubble Space Telescope. A long time ago gravity drew the two galaxies together into the chaotic state we now observe. Stars from...
  • NASA fixes Hubble gyroscope by turning it off and on again

    10/24/2018 10:01:09 AM PDT · by LibWhacker · 47 replies
    engadget ^ | 10/24/18 | Mariella Moon
    NASA Hubble's designers prepared for gyroscope failure by equipping the observatory with a backup. Unfortunately, when one of Hubble's gyroscopes conked out in early October, the backup didn't work as expected -- it was rotating too fast and hence won't be able to hold the telescope in place when it needs to stay still and lock in on a target. NASA has since been able to reduce its rotation rates and fix its issues by implementing an age-old fix for malfunctioning electronics: turning it off and on again. Back to science! @NASAHubble is well on its way to normal...
  • The Three Supernovas

    10/20/2018 4:11:44 PM PDT · by pcottraux · 15 replies
    Depths of Pentecost ^ | October 20, 2018 | Philip Cottraux
    The Three Supernovas By Philip Cottraux Atheists used to believe the universe was eternally pre-existing and static. By rejecting the biblical creation account, they couldn’t accept the idea of a universe that had a beginning. Bertrand Russell, Charles Darwin, and at one time even Einstein labored under this philosophy. The idea of the whole universe condensed to a small state whose expansion was triggered by a colossal explosion was first proposed by a Catholic priest, Georges LeMaitres. The idea seemed so preposterous that astronomer Fred Hoyle first coined the phrase “big bang” as a term of ridicule. But two years...
  • Hubble in Safe Mode as Gyro Issues are Diagnosed

    10/09/2018 12:31:30 AM PDT · by LibWhacker · 17 replies
    NASA ^ | 10/8/18 | Felicia Chou
    NASA is working to resume science operations of the Hubble Space Telescope after the spacecraft entered safe mode on Friday, October 5, shortly after 6:00 p.m. EDT. Hubble’s instruments still are fully operational and are expected to produce excellent science for years to come. Hubble entered safe mode after one of the three gyroscopes (gyros) actively being used to point and steady the telescope failed. Safe mode puts the telescope into a stable configuration until ground control can correct the issue and return the mission to normal operation. Built with multiple redundancies, Hubble had six new gyros installed during Servicing...
  • Dramatic Polar Light Show On Saturn

    08/31/2018 2:25:58 AM PDT · by zeestephen
    Watts Up With That ^ | 30 August 2018 | Anthony Watts
    Astronomers using the Hubble Space telescope have taken a series of images featuring the fluttering auroras at the north pole of Saturn. The observations were taken in ultraviolet light and the resulting images provide astronomers with the most comprehensive picture so far of Saturn’s northern aurora...Because the atmosphere of each of the four outer planets in the Solar System is – unlike the Earth – dominated by hydrogen, Saturn’s auroras can only be seen in ultraviolet wavelengths
  • We Might Have Just Discovered 2 Dark Moons Hidden Near Uranus

    12/22/2017 6:11:50 AM PST · by Red Badger · 50 replies
    www.sciencealert.com ^ | 17 OCT 2016 | FIONA MACDONALD
    ================================================================================================================ Researchers have re-examined data captured by the Voyager 2 spacecraft back in 1986, and think they've found evidence of two never-before-seen moons hidden in the rings of Uranus. Uranus, the third largest planet in our Solar System, already has 27 moons that we know of - but these two new ones appear to orbit the planet more closely than any of its other natural satellites, and are causing wavy patterns in its closest rings. Although Saturn is the most famous ringed planet orbiting our Sun, it's not the only one, with the three other gas giants - Jupiter, Uranus,...
  • Hubble Sees Massive Globular Cluster: NGC 6139

    06/30/2018 4:56:13 PM PDT · by Simon Green · 32 replies
    Sci News ^ | 06/25/18
    (much larger hi-res picture at link) Globular clusters are gravitationally-bound groupings of stars which orbit galaxies. These objects typically contain hundreds of thousands of stars that are thought to have formed at roughly the same time as their host galaxy. They are denser and more spherical than open star clusters like the famous Pleiades. The large mass in the rich stellar center of the cluster pulls the stars inward to form a ball of stars. The word globulus, from which these clusters take their name, is Latin for small sphere. It is thought that every galaxy has a population...
  • The Hubble Space Telescope Just Captured An ‘Einstein Ring'

    04/09/2018 7:06:43 AM PDT · by Simon Green · 50 replies
    Tech Times ^ | 04/09/18 | Carl Velasco
    When the Hubble Space Telescope took a photo of distant galaxy cluster SDSS J0146-0929, it was able to capture an immensely massive blanket of hundreds of galaxies caught in each other's gravitational pulls. In the photo, they look no more than inconsequential space dust: tiny, motionless, and remote. But in fact, the combined mass of these galaxies is so great that it causes a distortion in the fabric of space and time. That is represented by a glowing ring in the center of the image, which is actually a phenomenon called gravitational lensing. The circle of light, called the...
  • "Hubble confounds cosmology by not finding Dark Matter"

    03/31/2018 4:26:19 AM PDT · by Voption · 64 replies
    The John Batchelor Show ^ | March 31, 2018 | John Batchelor/Robert Zimmerman
    Using the Hubble Space Telescope astronomers have discovered a nearby galaxy that apparently has little or no evidence of dark matter. The unique galaxy, called NGC 1052-DF2, contains at most 1/400th the amount of dark matter that astronomers had expected. The galaxy is as large as our Milky Way, but it had escaped attention because it contains only 1/200th the number of stars.
  • Hubble Telescope Spies Gorgeous Galaxy Merger (Video, Photo)

    03/11/2018 12:07:46 PM PDT · by Simon Green · 23 replies
    Space.com ^ | 03/11/18 | Mike Wall
    Two merging spiral galaxies are caught twisting each other into cosmic knots in a spectacular photo by the Hubble Space Telescope. The colliding galaxies comprise a system known as Arp 256, which lies about 350 million light-years from Earth, in the constellation Cetus (the Whale). "The galaxies are ablaze with dazzling regions of star formation: The bright blue fireworks are stellar nurseries, churning out hot infant stars," officials with the European Space Agency (ESA) wrote in a description of the image Thursday (March 8). (The Hubble project is a collaboration between NASA and ESA.) "These vigorous bursts of new...
  • The Universe in a Mirror; The Saga of the Hubble Space Telescope and the Visionaries who built it

    03/04/2018 9:03:01 PM PST · by Voption · 9 replies
    Behind the Black ^ | June 2008 | Robert Zimmerman
    "For everyone who knows something of the story of the space telescope and its travails, this book provides a fascinating look behind the scenes. An excellent contribution to the history of technology." --Robert P. Kirshner, author of The Extravagant Universe
  • The Universe in a Mirror; The Saga of the Hubble Space Telescope and the Visionaries who built it.

    03/04/2018 8:12:32 PM PST · by Voption · 37 replies
    WGBH Forum at The Explorers Club Via YouTube ^ | June 30, 2008 | Robert Zimmerman
    The concept of what would become the Hubble Space Telescope was first envisioned after World War II, when astronomer Lyman Spitzer and a handful of scientists began a fifty year struggle to build the first space telescope capable of seeing beyond Earth's atmospheric veil. Robert Zimmerman, author of "The Universe in a Mirror: The Saga of the Hubble Space Telescope and the Visionaries Who Built It," takes us behind the scenes, explaining how some of Hubble's advocates sacrificed careers and family, and how others devoted their lives to the telescope only to have their hopes and reputations shattered when its...
  • Hubble Spots Farthest-Ever Incoming Active Comet

    09/30/2017 4:26:24 PM PDT · by BenLurkin · 11 replies
    Space.com ^ | September 29, 2017 | Sarah Lewin,
    The Hubble Space Telescope captured a view of Comet C/2017 K2 (PANSTARRS), called K2 for short, as it came in from out beyond Saturn's orbit, 1.5 billion miles from the sun. As it approaches the sun and the temperature rises from minus 440 degrees Fahrenheit, the comet is developing a fluffy cloud of dust, called a coma, which surrounds its frozen body. While the comet's nucleus appears to be just 12 miles across, the coma stretches 10 times Earth's diameter. According to a statement from NASA, K2 likely began its journey in the spherical Oort Cloud surrounding the solar system,...
  • Hubble Finds a Dead Galaxy that was Finished Making Stars Just a Billion Years After the Big Bang

    06/22/2017 8:43:14 PM PDT · by Ernest_at_the_Beach · 26 replies
    universetoday.com ^ | Published: 22 Jun , 2017 | Matt Williams
    Thanks to recent improvements in space-based and ground-based telescopes, astronomers have been able to probe deeper into the Universe than ever before. By looking billions of years back in time, we are able to test our theories about the history of galactic formation and evolution. Unfortunately, studying the very early Universe is a daunting task, and one that is beyond the capabilities of our current instruments.But by combining the power of the Hubble Space Telescope with a technique known as gravitational lensing, a team of astronomers made the first discovery of a compact galaxy that stopped making stars just...
  • Hubble Spots Auroras on Uranus

    04/11/2017 6:50:12 PM PDT · by LouieFisk · 48 replies
    NASA ^ | April 10, 2017 | NASA
    Ever since Voyager 2 beamed home spectacular images of the planets in the 1980s, planet-lovers have been hooked on auroras on other planets. Auroras are caused by streams of charged particles like electrons that come from various origins such as solar winds, the planetary ionosphere, and moon volcanism. They become caught in powerful magnetic fields and are channeled into the upper atmosphere, where their interactions with gas particles, such as oxygen or nitrogen, set off spectacular bursts of light.