Astrophysical Journal

Ancient star raises prospects of intelligent life

Can life survive for billions of years longer than the expected timeline on Earth? As scientists discover older and older solar systems, it's likely that before long we'll find an ancient planet in a habitable ...

dateMay 07, 2015 in Astronomy
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Accelerating universe? Not so fast

A University of Arizona-led team of astronomers found that the type of supernovae commonly used to measure distances in the universe fall into distinct populations not recognized before; the findings have ...

dateApr 10, 2015 in Astronomy
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Planet X myth debunked

It was an elusive planet that for 200 years appeared to explain Uranus's wobbly orbit. And there was the sister sun theorized to be near our solar system that caused asteroids to swerve toward Earth.

dateMar 16, 2014 in Astronomy
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Hubble sees 'ghost light' from dead galaxies

(Phys.org) —NASA's Hubble Space Telescope has picked up the faint, ghostly glow of stars ejected from ancient galaxies that were gravitationally ripped apart several billion years ago. The mayhem happened ...

dateOct 30, 2014 in Astronomy
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