News tagged with dense gas

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'Dead' galaxies are not so dead after all

( -- University of Michigan astronomers examined old galaxies and were surprised to discover that they are still making new stars. The results provide insights into how galaxies evolve with time.

dateMay 30, 2011 in Astronomy
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The Milky Way's central molecular zone

The center of our Milky Way galaxy lies about 27,000 light-years away in the direction of the constellation of Sagittarius. At its core is a black hole about four million solar masses in size. Around the black hole is a donut-shaped ...

dateFeb 29, 2016 in Astronomy
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Twisted tale of our galaxy's ring

( -- 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 more than 600 ...

dateJul 20, 2011 in Astronomy
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Calcium carbonate and climate change

( -- 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 ...

dateAug 30, 2010 in Earth Sciences
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