The Galaxy Evolution Explorer (GALEX) is an orbiting space telescope observing galaxies in ultraviolet light across 10 billion years of cosmic history. A Pegasus rocket launched GALEX into orbit at 8 a.m. EDT on April 28th, 2003. Although originally planned as a 29-month mission, the NASA Senior Review Panel in 2006 recommended that the mission lifetime be extended. This is the official home page of the GALEX mission. http://www.galex.caltech.edu/ Data from the GALEX spacecraft suggest that planets around cool dwarf stars may be subjected to intense flares. http://www.galex.caltech.edu/newsroom/glx2017-01f.html http://www.galex.caltech.edu/newsroom/glx2017-01f.html Tue, 06 Jun 2017 08:30:00 PDT The galaxy UGC 1382 has been revealed to be far larger and stranger than previously thought. Astronomers relied on a combination of ground-based and space telescopes to uncover the true nature of this Frankenstein galaxy. http://www.galex.caltech.edu/newsroom/glx2016-01f.html http://www.galex.caltech.edu/newsroom/glx2016-01f.html Mon, 11 Jul 2016 09:00:00 PDT Entangled by gravity and destined to merge, two candidate black holes in a distant galaxy appear to be locked in an intricate dance. Researchers using data from NASA's Galaxy Evolution Explorer (GALEX) and NASA's Hubble Space Telescope have come up with the most compelling confirmation yet for the existence of these merging black holes and have found new details about their odd, cyclical light signal. http://www.galex.caltech.edu/newsroom/glx2015-02f.html http://www.galex.caltech.edu/newsroom/glx2015-02f.html Wed, 16 Sep 2015 11:30:00 PDT A new report identifies top-of-the-line tools for studying the fabric of space. http://www.galex.caltech.edu/newsroom/glx2015-01f.html http://www.galex.caltech.edu/newsroom/glx2015-01f.html Thu, 26 Mar 2015 11:00:00 PDT What makes one rose bush blossom with flowers, while another remains barren? Astronomers ask a similar question of galaxies. http://www.galex.caltech.edu/newsroom/glx2014-01f.html http://www.galex.caltech.edu/newsroom/glx2014-01f.html Wed, 15 Oct 2014 10:00:00 PDT NASA has turned off its Galaxy Evolution Explorer after a decade of operations in which the venerable space telescope used its ultraviolet vision to study hundreds of millions of galaxies across 10 billion years of cosmic time. http://www.galex.caltech.edu/newsroom/glx2013-03r.html http://www.galex.caltech.edu/newsroom/glx2013-03r.html Fri, 28 Jun 2013 10:00:00 PDT A duo of astronomers, Dr. Youichi Ohyama (Institute of Astronomy and Astrophysics, Academia Sinica or ASIAA, Taiwan) and Dr. Ananda Hota (UM-DAE Centre for Excellence in the Basic Sciences or CBS, India), has discovered a Blue Supergiant star located far beyond our Milky Way Galaxy in the constellation Virgo. http://www.naoj.org/Pressrelease/2013/04/10/ http://www.naoj.org/Pressrelease/2013/04/10/ Thu, 11 Apr 2013 14:00:00 PDT The light of a red star is warped and magnified by its dead-star companion, as detected by NASA's Kepler space telescope. http://www.galex.caltech.edu/newsroom/glx2013-01f.html http://www.galex.caltech.edu/newsroom/glx2013-01f.html Thu, 04 Apr 2013 14:00:00 PDT The spectacular barred spiral galaxy NGC 6872 has ranked among the biggest stellar systems for decades. Now a team of astronomers from the United States, Chile and Brazil have crowned it the largest-known spiral based on archival data from NASA's Galaxy Evolution Explorer mission. http://www.galex.caltech.edu/newsroom/glx2013-01r.html http://www.galex.caltech.edu/newsroom/glx2013-01r.html Thu, 10 Jan 2013 12:45:00 PDT What was once a fairly average star, not much different than our sun, can be seen unraveling at the seams in this new image from the Spitzer and GALEX space telescopes. http://www.galex.caltech.edu/newsroom/glx2012-04f.html http://www.galex.caltech.edu/newsroom/glx2012-04f.html Wed, 03 Oct 2012 14:30:00 PDT NASA is lending the Galaxy Evolution Explorer (GALEX) to the California Institute of Technology (Caltech) in Pasadena, where the spacecraft will continue its exploration of the cosmos. http://www.galex.caltech.edu/newsroom/glx2012-03r.html http://www.galex.caltech.edu/newsroom/glx2012-03r.html Tue, 15 May 2012 12:00:00 PDT Explorers are among the lowest-cost missions flown by NASA, but they can pack a big scientific punch. Such is the case with the Galaxy Evolution Explorer, or GALEX, a mission designed to map the history of star formation over 80 percent of the age of the universe. http://www.nasa.gov/offices/oce/appel/ask/issues/46/46s_managing_unexpected.html http://www.nasa.gov/offices/oce/appel/ask/issues/46/46s_managing_unexpected.html Mon, 14 May 2012 10:00:00 PDT Astronomers have gathered the most direct evidence yet of a supermassive black hole shredding a star that wandered too close. http://www.galex.caltech.edu/newsroom/glx2012-02r.html http://www.galex.caltech.edu/newsroom/glx2012-02r.html Wed, 02 May 2012 10:00:00 PDT Supernova explosions and the jets of a monstrous black hole are scattering a galaxy's star-making gas like a cosmic leaf blower. http://www.galex.caltech.edu/media/glx2012-02f_img01.html http://www.galex.caltech.edu/media/glx2012-02f_img01.html Tue, 03 Apr 2012 13:15:00 PDT Wispy tendrils of hot dust and gas glow brightly in this ultraviolet image of the Cygnus Loop nebula, taken by NASA's Galaxy Evolution Explorer. http://www.galex.caltech.edu/media/glx2012-01r_img01.html http://www.galex.caltech.edu/media/glx2012-01r_img01.html Thu, 22 Mar 2012 14:30:00 PDT NASA's Galaxy Evolution Explorer was placed in standby mode today as engineers prepare to end mission operations, nearly nine years after the telescope's launch. http://www.galex.caltech.edu/newsroom/glx2012-01f.html http://www.galex.caltech.edu/newsroom/glx2012-01f.html Tue, 07 Feb 2012 13:30:00 PDT Five billion years from now, our Milky Way galaxy will collide with the Andromeda galaxy. This will mark a moment of both destruction and creation. http://www.cfa.harvard.edu/news/2011/pr201117.html/ http://www.cfa.harvard.edu/news/2011/pr201117.html/ Wed, 25 May 2011 10:00:00 PDT A five-year survey of 200,000 galaxies, stretching back seven billion years in cosmic time, has led to one of the best independent confirmations that dark energy is driving our universe apart at accelerating speeds. http://www.galex.caltech.edu/newsroom/glx2011-01r.html http://www.galex.caltech.edu/newsroom/glx2011-01r.html Thu, 19 May 2011 08:00:00 PDT Astronomers using NASA's Galaxy Evolution Explorer may be closer to knowing why some of the most massive stellar explosions ever observed occur in the tiniest of galaxies. http://www.galex.caltech.edu/newsroom/glx2011-02f.html http://www.galex.caltech.edu/newsroom/glx2011-02f.html Thu, 21 Apr 2011 10:00:00 PDT Astronomers have come up with a new way of identifying close, faint stars with NASA's Galaxy Evolution Explorer satellite. The technique should help in the hunt for planets that lie beyond our solar system, because nearby, hard-to-see stars could very well be home to the easiest-to-see alien planets. http://www.galex.caltech.edu/newsroom/glx2011-01f.html http://www.galex.caltech.edu/newsroom/glx2011-01f.html Thu, 07 Apr 2011 14:00:00 PDT Astronomers have found mysterious, giant loops of ultraviolet light in aged, massive galaxies, which seem to have a second lease on life. http://www.galex.caltech.edu/newsroom/glx2010-03f.html http://www.galex.caltech.edu/newsroom/glx2010-03f.html Wed, 11 Aug 2010 10:00:00 PDT NASA's Galaxy Evolution Explorer has discovered a galaxy tail studded with bright knots of new stars. The tail, which was created as the galaxy IC 3418 plunged into the neighboring Virgo cluster of galaxies, offers new insight into how stars form. http://www.galex.caltech.edu/newsroom/glx2010-02f.html http://www.galex.caltech.edu/newsroom/glx2010-02f.html Thu, 17 Jun 2010 11:00:00 PDT Mission engineers and scientists with NASA's Galaxy Evolution Explorer, a space telescope that has been beaming back pictures of galaxies for three times its design lifespan, are no longer planning science observations around one of its two ultraviolet detectors. http://www.galex.caltech.edu/newsroom/glx2010-01s.html http://www.galex.caltech.edu/newsroom/glx2010-01s.html Fri, 09 Apr 2010 19:17:00 PDT Dr Mark Seibert and Dr James Don Neill explain what GALEX does in this International Year of Astronomy Video http://www.galex.caltech.edu/media/glx2010-IYA.html http://www.galex.caltech.edu/media/glx2010-IYA.html Fri, 09 Apr 2010 19:15:00 PDT Imagine finding a living dinosaur in your backyard. Astronomers have found the astronomical equivalent of prehistoric life in our intergalactic backyard. http://www.galex.caltech.edu/newsroom/glx2010-01f.html http://www.galex.caltech.edu/newsroom/glx2010-01f.html Thu, 18 Feb 2010 10:00:00 PDT Engineers and scientists have several laboratory activities underway that are expected to aid in recovering the far-ultraviolet instrument on NASA's Galaxy Evolution Explorer. http://www.galex.caltech.edu/newsroom/glx2009-12s.html http://www.galex.caltech.edu/newsroom/glx2009-12s.html Wed, 2 Dec 2009 10:00:00 PDT Engineers and scientists are continuing to work on the recovery of the far-ultraviolet instrument on NASA's Galaxy Evolution Explorer. http://www.galex.caltech.edu/newsroom/glx2009-08s.html http://www.galex.caltech.edu/newsroom/glx2009-08s.html Fri, 21 Aug 2009 10:00:00 PDT For decades, astronomers have gone about their business of studying the cosmos with the assumption that stars of certain sizes form in certain quantities http://www.galex.caltech.edu/newsroom/glx2009-04r.html http://www.galex.caltech.edu/newsroom/glx2009-04r.html Wed, 19 Aug 2009 10:00:00 PDT Engineers and scientists are continuing the recovery procedure for the far-ultraviolet instrument on NASA's Galaxy Evolution Explorer. On May 29, the instrument experienced an overcurrent condition and shut down. http://www.galex.caltech.edu/newsroom/glx2009-07s.html http://www.galex.caltech.edu/newsroom/glx2009-07s.html Thu, 9 Jul 2009 10:00:00 PDT On May 29, the Galaxy Evolution Explorer's far-ultraviolet instrument reported an overcurrent condition and shut down. The project reviewed data from the incident and confirmed it had the same characteristics as three previous incidents occurring in 2005, 2006 and 2007. http://www.galex.caltech.edu/newsroom/glx2009-06s.html http://www.galex.caltech.edu/newsroom/glx2009-06s.html Tue, 9 Jun 2009 10:00:00 PDT NASA's Galaxy Evolution Explorer Mission marks its sixth anniversary studying galaxies beyond our Milky Way through its sensitive ultraviolet telescope, the only such far-ultraviolet detector in space. http://www.galex.caltech.edu/newsroom/glx2009-01f.html http://www.galex.caltech.edu/newsroom/glx2009-01f.html Tue, 28 Apr 2009 14:50:00 PDT This new image of the 'Ghost of Jupiter' is being released as part of the 'Around the World in 80 Telescopes' event for the International Year of Astronomy. http://www.galex.caltech.edu/media/glx2009-03r_img01.html http://www.galex.caltech.edu/media/glx2009-03r_img01.html Fri, 03 Apr 2009 13:20:00 PDT A collection of NASA missions will be involved in a live event Friday, April 3, that will allow the public to get an inside look at how these missions are run. "Around the World in 80 Telescopes" is a 24-hour webcast that is part of the "100 Hours of Astronomy" event for the International Year of Astronomy 2009. http://www.galex.caltech.edu/newsroom/glx2009-02r.html http://www.galex.caltech.edu/newsroom/glx2009-02r.html Thu, 02 Apr 2009 11:30:00 PDT GALEX captures a dying star hurtling through space, leaving a trail of glowing debris more than 13 light-years long. http://channel.nationalgeographic.com/series/naked-science/3493/Overview?#tab-Videos/06364_00 http://channel.nationalgeographic.com/series/naked-science/3493/Overview?#tab-Videos/06364_00 Thu, 26 Mar 2009 10:00:00 PDT Galex is participating in the 24-hour live webcast "Around the World in 80 Telescopes" as part of the 100 Hours of Astronomy event in conjunction with the International Year of Astronomy celebrating the 400th anniversary of Galileo's first astronomical observations using a telescope. Our portion is scheduled for 20:20 UTC (1:20 PM PDT) on Friday, April 3, 2009 live from Caltech. Spitzer Space Telescope, another space-based telescope project hosted at Caltech, will also participate and is scheduled for 21:20 UTC (2:20 PDT) on Friday, April 3 2009. http://www.100hoursofastronomy.org/program/75-live-24-hour-research-observatory-webcast http://www.100hoursofastronomy.org/program/75-live-24-hour-research-observatory-webcast Mon, 23 Mar 2009 10:00:00 PDT There is more than one way to make a dwarf galaxy, and NASA's Galaxy Evolution Explorer has found a new recipe. http://www.galex.caltech.edu/newsroom/glx2009-01r.html http://www.galex.caltech.edu/newsroom/glx2009-01r.html Wed, 18 Feb 2009 11:00:00 PDT NASA's Galaxy Evolution Explorer has lifted the veil off a ghost known to haunt the local universe, providing new insight into the formation and evolution of galaxies. http://www.galex.caltech.edu/newsroom/glx2008-02r.html http://www.galex.caltech.edu/newsroom/glx2008-02r.html Fri, 31 Oct 2008 15:00:00 PDT Since its launch five years ago, the Galaxy Evolution Explorer (GALEX) has photographed hundreds of millions of galaxies in ultraviolet light. M106 is one of those galaxies, and from 22 million light years away, it strikes a pose in blue and gold for this new commemorative portrait. http://www.galex.caltech.edu/newsroom/glx2008-02f.html http://www.galex.caltech.edu/newsroom/glx2008-02f.html Mon, 28 Apr 2008 12:00:00 PDT A new image from NASA's Galaxy Evolution Explorer shows baby stars sprouting in the backwoods of a galaxy -- a relatively desolate region of space more than 100,000 light-years from the galaxy's bustling center. http://www.galex.caltech.edu/newsroom/glx2008-01r.html http://www.galex.caltech.edu/newsroom/glx2008-01r.html Wed, 16 Apr 2008 10:00:00 PDT As the most sensitive ultraviolet telescope ever launched, NASA's Galaxy Evolution Explorer (GALEX) scouts galaxies, or "stellar communities," over 10 billion years of cosmic history. Since its launch in April 2003, GALEX has glimpsed hundreds of thousands of galaxies -- revealing some of the hottest stellar neighborhoods in the cosmos. Here's a look back at some of the mission's most memorable views. http://www.galex.caltech.edu/newsroom/glx2008-01f.html http://www.galex.caltech.edu/newsroom/glx2008-01f.html Thu, 21 Feb 2008 12:00:00 PDT