Astrophysical Journal

Hubble dates black hole's last big meal

For the supermassive black hole at the center of our Milky Way galaxy, it's been a long time between dinners. NASA's Hubble Space Telescope has found that the black hole ate its last big meal about 6 million years ago, when ...

dateMar 09, 2017 in Astronomy
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Supernova ejected from the pages of history

A new look at the debris from an exploded star in our galaxy has astronomers re-examining when the supernova actually happened. Recent observations of the supernova remnant called G11.2-0.3 with NASA's Chandra X-ray Observatory ...

dateAug 17, 2016 in Astronomy
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Pulsar with widest orbit ever detected

A team of highly determined high school students discovered a never-before-seen pulsar by painstakingly analyzing data from the National Science Foundation's (NSF) Robert C. Byrd Green Bank Telescope (GBT). Further observations ...

dateMay 01, 2015 in Astronomy
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Galaxy cluster discovered at record-breaking distance

A new record for the most distant galaxy cluster has been set using NASA's Chandra X-ray Observatory and other telescopes. This galaxy cluster may have been caught right after birth, a brief, but important stage of evolution ...

dateAug 31, 2016 in Astronomy
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Astronomers find unexpected 'storm' at galaxy's core

Astronomers using the National Science Foundation's Very Large Array (VLA) found surprisingly energetic activity in what they otherwise considered a "boring" galaxy, and their discovery provides important insight on how supermassive ...

dateFeb 11, 2015 in Astronomy
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