News tagged with spitzer space telescope

A green ring fit for a superhero

(PhysOrg.com) -- This glowing emerald nebula seen by NASA's Spitzer Space Telescope is reminiscent of the glowing ring wielded by the superhero Green Lantern. In the comic books, the diminutive Guardians of the Planet "Oa" ...

dateJun 16, 2011 in Astronomy
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Measuring the clumpiness of proto-planetary disks

(PhysOrg.com) -- The process of star formation, once thought to involve just the simple coalescence of material under the influence of gravity, actually entails a complex series of stages, with the youngest stars assembling ...

dateJun 14, 2011 in Astronomy
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Dust, blowing in the wind

(PhysOrg.com) -- Interstellar space contains vast quantities of dust that obscures our view while helping to catalyze the chemical reactions that turn atomic gases into complex molecular species. Most dust is made in the ...

dateApr 25, 2011 in Astronomy
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The most distant mature galaxy cluster

Astronomers have used an armada of telescopes on the ground and in space, including the Very Large Telescope at ESO's Paranal Observatory in Chile to discover and measure the distance to the most remote mature cluster of ...

dateMar 09, 2011 in Astronomy
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Giant ring of black holes

(PhysOrg.com) -- Just in time for Valentine's Day comes a new image of a ring -- not of jewels -- but of black holes.

dateFeb 09, 2011 in Astronomy
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Cosmology standard candle not so standard after all

(PhysOrg.com) -- Astronomers have turned up the first direct proof that "standard candles" used to illuminate the size of the universe, termed Cepheids, shrink in mass, making them not quite as standard as once thought. The ...

dateJan 12, 2011 in Astronomy
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