News tagged with optical telescopes

NASA's Swift catches 500th gamma-ray burst

In its first five years in orbit, NASA's Swift satellite has given astronomers more than they could have hoped for. Its discoveries range from a nearby nascent supernova to a blast so far away that it happened when our universe ...

dateApr 19, 2010 in Astronomy
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Small, Ground-Based Telescope Images Three Exoplanets

( -- Astronomers have snapped a picture of three planets orbiting a star beyond our own using a modest-sized telescope on the ground. The surprising feat was accomplished by a team at NASA's Jet Propulsion Laboratory ...

dateApr 14, 2010 in Astronomy
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Astronomers seek to explore the cosmic Dark Ages

No place seems safe from the prying eyes of inquisitive astronomers. They've traced the evolution of the universe back to the "Big Bang," the theoretical birth of the cosmos 13.7 billion years ago, but there's still a long ...

dateOct 15, 2009 in Astronomy
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A new class of dim supernovae

The colossal stellar explosions called supernovae come in many kinds and flavours. Some of them are produced when a massive star reaches the end of its life in a sudden gravitational collapse. Astronomers have just found ...

dateJun 05, 2009 in Astronomy
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An Intriguing, Glowing Galaxy

A supermassive black hole may be responsible for the glowing appearance of galaxy 3C 305, located about 600 million light years away in the constellation Draco. Composite data from NASA’s Chandra X-ray Observatory and other ...

dateMay 14, 2009 in Astronomy
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Swift satellite comet tally highlighted

A montage of comet images made using NASA's Swift spacecraft illustrates just how different three comets can be. The images, including a never-released image of Comet 8P/Tuttle, were shown during a webcast called "Around ...

dateApr 24, 2009 in Astronomy
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