News tagged with astrophysical journal

Dating our galaxy's dormant volcano

( —A dormant volcano—a supermassive black hole—lies at the heart of our galaxy. Fresh evidence suggests that it last erupted two million years ago.

dateSep 23, 2013 in Astronomy
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SDO mission untangles motion inside the Sun

( —Using an instrument on NASA's Solar Dynamics Observatory, called the Helioseismic and Magnetic Imager, or HMI, scientists have overturned previous notions of how the sun's writhing insides move from equator ...

dateAug 28, 2013 in Space Exploration
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Quasar observed in six separate light reflections

( —Quasars are active black holes—primarily from the early universe. Using a special method where you observe light that has been bent by gravity on its way through the universe, a group of physics students from ...

dateAug 07, 2013 in Astronomy
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Monster galaxies lose their appetite with age

( —Our universe is filled with gobs of galaxies, bound together by gravity into larger families called clusters. Lying at the heart of most clusters is a monster galaxy thought to grow in size by merging with neighboring ...

dateAug 01, 2013 in Astronomy
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