News tagged with dense gas

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A supernova cocoon breakthrough

(Phys.org) -- Observations with NASA's Chandra X-ray Observatory have provided the first X-ray evidence of a supernova shock wave breaking through a cocoon of gas surrounding the star that exploded. This discovery ...

May 15, 2012 4.8 / 5 (6) 0 | with audio podcast

Stellar embryos

(PhysOrg.com) -- Stars form as gravity coalesces the gas and dust in interstellar clouds until the material produces clumps dense enough to become stars. But precisely how this happens, and whether or not ...

Jan 23, 2012 5 / 5 (4) 6 | with audio podcast

A universal law for star formation

(PhysOrg.com) -- Star formation is studied by astronomers not only because it produces new stars and planetary systems. It also generates copious amounts of ultraviolet light that heats dust which in turn ...

Jan 09, 2012 4.7 / 5 (3) 0 | with audio podcast

Hot cores in dark clouds

(PhysOrg.com) -- The earliest stages in the life of a star are among the most mysterious. This is primarily because stars form inside dark clouds of material that block optical light, and because they form ...

Dec 06, 2011 4 / 5 (2) 1 | with audio podcast

Twisted tale of our galaxy's ring

(PhysOrg.com) -- New observations from the Herschel Space Observatory show a bizarre, twisted ring of dense gas at the center of our Milky Way galaxy. Only a few portions of the ring, which stretches across ...

Jul 20, 2011 4.9 / 5 (11) 17 | with audio podcast

'Elephant trunks' in space

(PhysOrg.com) -- NASA's Wide-field Infrared Survey Explorer, or WISE, captured this image of a star-forming cloud of dust and gas, called Sh2-284, located in the constellation of Monoceros. Lining up along ...

Mar 07, 2011 5 / 5 (2) 3 | with audio podcast

Calcium carbonate and climate change

(PhysOrg.com) -- What links sea urchins, limestone and climate change? The common thread is calcium carbonate, one of the most widespread minerals on Earth. UC Davis researchers have now measured the energy changes among ...

Aug 30, 2010 3.8 / 5 (9) 3 | with audio podcast
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