The Brightest Supernova Ever
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Astronomers using NASA's Chandra X-ray Observatory and other telescopes have recorded the brightest supernova ever seen.
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Astronomers say they have captured a stellar explosion - or supernova - unfolding in real time.
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Boffins go back to the drawing board Researchers have located the most massive stellar black hole ever discovered, just three million light-years away in a nearby galaxy. The stellar remnant is in a binary system known as M33, orbiting a huge companion star. The researchers say the find is "intriguing", because of what it suggests about stellar evolution.â¦
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Astronomers have found evidence for the most distant galaxies ever detected.
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A trio of supergiants -- red, cool, bright stars at the end of their lives -- may be the biggest stars ever identified, astronomers reported on Monday.
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&quot;Boring&quot; light from red dwarf star Gl
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A cosmic explosion that seems to have come out of nowhere&#x2014;thousands of light-years from the nearest collection of stars&#x2014;has left astronomers baffled.
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For the first time astronomers have witnessed a supermassive black hole blasting its galactic neighbor with a deadly beam of energy.
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Science & environment: Telescope reveals in unprecedented detail the interaction of two neighbouring galaxies 300m light years from Earth.
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When you look at Sirius, the Dog Star, you&#39;re actually seeing light that left the star 8.6 years ago. In the meantime, the star could have burst into a supernova or run off chasing the gargantuan Ford Galaxy.
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Detailed, real-time data Scientists have, for the first time, been able to watch a star go supernova in real time, thanks to NASA's Swift satellite.â¦
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A new NASA space telescope will give scientists a peek at some of the most energetic objects and events in the universe. The new Gamma-ray Large Area Space Telescope to be launched next spring doesn't see visible light like our eyes, but gamma rays, the most energetic photons in the electromagnetic spectrum.
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Astronomers reveal one of the clearest images obtained of Stephan's Quintet.
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Hubble Space Telescope -- An international team of astronomers is announcing today that they have identified the probable surviving companion star to a titanic supernova explosion witnessed in the year 1572 by the great Danish astronomer Tycho Brahe and
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Scientists have obtained their best measurement yet of the size and contents of a neutron star, an ultra-dense object containing the strangest and rarest matter in the Universe.
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Gamma-ray bursts are the most powerful events in the universe, temporary outshining several galaxies and likely signaling the birth of a black hole.
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Evidence for an awesome upheaval in a massive galaxy cluster was discovered in an image made by NASA's Chandra X-ray Observatory.