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Keyword: hubble

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  • 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.
  • APOD: The Cone Nebula from Hubble

    03/15/2017 8:19:34 AM PDT · by Purdue77 · 4 replies
    Astronomy Picture of the Day ^ | 15 March 2017 | Hubble Legacy Archive, NASA, ESA
    Explanation: Stars are forming in the gigantic dust pillar called the Cone Nebula. Cones, pillars, and majestic flowing shapes abound in stellar nurseries where natal clouds of gas and dust are buffeted by energetic winds from newborn stars. The Cone Nebula, a well-known example, lies within the bright galactic star-forming region NGC 2264. The Cone was captured in unprecedented detail in this close-up composite of several observations from the Earth-orbiting Hubble Space Telescope. While the Cone Nebula, about 2,500 light-years away in Monoceros, is around 7 light-years long, the region pictured here surrounding the cone's blunted head is a mere...
  • Hubble solves the mystery bulge at the center of the Milky Way

    03/10/2017 8:25:30 AM PST · by MtnClimber · 16 replies
    Astronomy Magazine ^ | 9 Mar, 2017 | Alison Klesman
    The Milky Way appears as a relatively flat structure when viewed along its plane in visible light. Gamma-ray emission, however, paints a different picture: two huge structures billowing outward from the galaxy’s bulge like an enormous hourglass. Named the Fermi Bubbles, these structures are the result of the Milky Way’s supermassive black hole gorging itself on interstellar gas in the past. Using the Hubble Space Telescope (HST), astronomers have now determined just when these structured formed. A team of astronomers led by Rongmon Bordoloi of the Massachusetts Institute of Technology has used distant quasars to trace the structure and motion...
  • What will the James Webb Space Telescope reveal ...? (Trunc; Hubble Replacement)

    02/24/2017 9:00:55 AM PST · by Hostage · 43 replies
    New Atlas ^ | 2-24-2017 | Nick Lavars
    The discovery of seven habitable planets just 40 light years away is certainly impressive, but the fact is, they are still 40 light years away. Unless we're willing and able to spend thousands of years traveling through space, we won't be rolling into the TRAPPIST-1 system anytime soon. This means that over the coming decades, advanced scientific instruments closer to home will play very important roles in exploring these distant worlds – perhaps none more so than the James Webb Space Telescope. So what can we expect when it is fired into orbit next year? We checked in with some...
  • Hubble's Shining View Of Deep Space Beyond The Stars

    12/27/2016 4:52:59 PM PST · by MtnClimber · 33 replies
    Forbes ^ | 26 Dec, 2016 | Ethan Siegel
    From any point on Earth's surface, a clear night sky reveals a treasure trove of stars and deep-sky objects. Through a powerful telescope, billions of objects become visible, from stars and nebulae to the galaxies beyond our own. With the success of the Hubble deep fields in revealing distant, hitherto unseen galaxies, 2010 brought a new camera and a new ambition. The installation of the Wide Field Camera 3 enabled simultaneously large, deep views of space as never before. The Great Observatories Origins Deep Survey (GOODS) began with this 2010 mosaic, which stitched together hundreds of images in visible and...
  • Hubble photographs Jupiter's dramatic auroras

    07/01/2016 10:00:33 PM PDT · by grimalkin · 25 replies
    endgadget ^ | 6/30/2016 | Mariella Moon
    The wispy, glowing veil sitting on top of Jupiter in the image above is actually a humongous aurora captured on cam by Hubble. A team of astronomers are using the telescope's ultraviolet instruments to study nature's light shows on the poles of the gas giant. They timed their study to coincide with Juno's arrival on the planet, since one of their goals is to determine how different solar wind conditions and other factors affect Jupiter's auroras. The spacecraft is in charge of measuring various solar wind properties, while they continue capturing images and videos almost every day during the duration...
  • 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...
  • Hubble Telescope Captures Sharpest Image Yet of Mysterious Red Rectangle

    04/25/2016 4:54:13 AM PDT · by BenLurkin · 23 replies
    Space.com ^ | April 25, 2016 07:00am ET | Kasandra Brabaw
    The Red Rectangle, so named because of its bizarre shape and striking color, is a nebula — a cosmic cloud of gas and particles. In this case, the nebula is formed by the central star, HD 44179, which is reaching the end of its life and shedding most of its mass into space. The source of the red light emitted by the Red Rectangle baffled scientists for more than 30 years. The same kind of red emission was seen throughout the Milky Way and in other galaxies, but scientists weren't sure what created it. The mystery was finally solved in...
  • Astronomy Picture of the Day -- Close-up of the Bubble Nebula

    04/03/2016 2:30:41 PM PDT · by SunkenCiv · 4 replies
    NASA ^ | Sunday, April 03, 2016 | (see photo credit)
    Explanation: It's the bubble versus the cloud. NGC 7635, the Bubble Nebula, is being pushed out by the stellar wind of massive central star BD+602522. Next door, though, lives a giant molecular cloud, visible to the right. At this place in space, an irresistible force meets an immovable object in an interesting way. The cloud is able to contain the expansion of the bubble gas, but gets blasted by the hot radiation from the bubble's central star. The radiation heats up dense regions of the molecular cloud causing it to glow. The Bubble Nebula, featured here in scientifically mapped colors...
  • Astronomy Picture of the Day -- The Bubble Nebula

    10/04/2014 3:36:02 PM PDT · by SunkenCiv · 16 replies
    NASA ^ | October 02, 2014 | (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 10 light-year diameter bubble offers evidence of violent processes at work. Below and left of the Bubble's center is a hot, O 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 -- Comet Lemmon and the Deep Sky

    07/20/2013 3:12:16 AM PDT · by SunkenCiv · 6 replies
    NASA ^ | July 20, 2013 | (see photo credit)
    Explanation: Now sweeping high above the ecliptic plane, Comet Lemmon has faded dramatically in planet Earth's night sky as it heads for the outer solar system. Some 16 light-minutes (2 AU) from the Sun, it still sports a greenish coma though, posing on the right in this 4 degree wide telescopic view from last Saturday with deep sky star clusters and nebulae in Cassiopeia. In fact, the rich background skyscape is typical within the boundaries of the boastful northern constellation that lie along the crowded starfields of the Milky Way. Included near center is open star cluster M52 about 5,000...
  • Astronomy Picture of the Day -- The Bubble Nebula

    08/05/2012 10:01:09 AM PDT · by SunkenCiv · 3 replies
    NASA ^ | August 04, 2012 | (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 10 light-year diameter bubble offers evidence of violent processes at work. Above and right of the Bubble's center is a hot, O 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 -- NGC 7635: The Bubble Nebula

    10/11/2011 3:16:51 AM PDT · by SunkenCiv · 9 replies
    NASA ^ | October 11, 2011 | (see photo credit)
    Explanation: It's the bubble versus the cloud. NGC 7635, the Bubble Nebula, is being pushed out by the stellar wind of massive central star BD+602522. Next door, though, lives a giant molecular cloud, visible to the right. At this place in space, an irresistible force meets an immovable object in an interesting way. The cloud is able to contain the expansion of the bubble gas, but gets blasted by the hot radiation from the bubble's central star. The radiation heats up dense regions of the molecular cloud causing it to glow. The Bubble Nebula, pictured above in scientifically mapped colors...