News tagged with spitzer space telescope

Can planets be rejuvenated around dead stars?

For a planet, this would be like a day at the spa. After years of growing old, a massive planet could, in theory, brighten up with a radiant, youthful glow. Rejuvenated planets, as they are nicknamed, are only hypothetical. ...

dateJun 26, 2015 in Astronomy
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Mysterious red galaxies

( -- Perhaps the most astonishing and revolutionary discovery in cosmology was Edwin Hubble's observation that galaxies are moving away from us with velocities that are proportional to their distances.

dateDec 12, 2011 in Astronomy
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Destroyer of worlds

( -- Astronomers, in addition to discovering extrasolar planets (about 500 of them currently have known orbital parameters), have detected excess, warm infrared dust emission around many stars.

dateSep 24, 2010 in Astronomy
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Galaxy's Ring of Fire

Johnny Cash may have preferred this galaxy's burning ring of fire to the one he sang about falling into in his popular song. The "starburst ring" seen at center in red and yellow hues is not the product of love, as in the ...

dateMay 18, 2013 in Astronomy
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