Astrophysical Journal

Hubble discovers rare fossil relic of early Milky Way

A fossilised remnant of the early Milky Way harbouring stars of hugely different ages has been revealed by an international team of astronomers. This stellar system resembles a globular cluster, but is like no other cluster ...

dateSep 07, 2016 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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The rise and fall of galaxy formation

An international team of astronomers, including Carnegie's Eric Persson, has charted the rise and fall of galaxies over 90 percent of cosmic history. Their work, which includes some of the most sensitive astronomical measurements ...

dateAug 30, 2016 in Astronomy
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Milky way had a blowout bash six million years ago

The center of the Milky Way galaxy is currently a quiet place where a supermassive black hole slumbers, only occasionally slurping small sips of hydrogen gas. But it wasn't always this way. A new study shows that 6 million ...

dateAug 29, 2016 in Astronomy
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