For the first time, astronomers have clearly seen the effects of “dark energy” on the most massive collapsed objects in the universe using NASA’s Chandra X-ray Observatory. By tracking how dark energy has stifled the growth of galaxy clusters and combining this with previous studies, scientists have obtained the best …
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Archive for December, 2008
NASA Top Science Exploration and Discovery Stories of 2008
Monday, December 15th, 2008 at
3:05 pm
NASA landed on Mars, photographed distant worlds, added to the International Space Station, took part in a lunar science mission with India and made major progress toward returning astronauts to the moon as the agency celebrated its 50th birthday in 2008. Here on Earth, NASA researchers recorded the continued …
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Colorado Super Bolide
Thursday, December 11th, 2008 at
8:01 pm
On Dec. 6th, 2008 at 1:06 a.m. MST, a meteor of stunning brightness lit up the skies over Colorado, USA. Astronomer Chris Peterson photographed the event using a dedicated all-sky meteor camera in the town of Guffey, near Colorado Springs:
“In seven years of operation, this is the brightest fireball …
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Hubble Space Telescope Finds Carbon Dioxide on Extrasolar Planet
Wednesday, December 10th, 2008 at
6:56 pm
NASA’s Hubble Space Telescope has discovered carbon dioxide in the atmosphere of a planet orbiting another star. This breakthrough is an important step toward finding chemical biotracers of extraterrestrial life.
The Jupiter-sized planet, called HD 189733b, is too hot for life. But the Hubble observations are a proof-of-concept demonstration that …
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AAVSO Alert Notice 392: Supernova 2008hy in IC 334
Monday, December 8th, 2008 at
8:38 pm
AAVSO Alert Notice 392:
Supernova 2008hy in IC 334
December 8, 2008
Further to CBETs #1608 (Puckett and Langoussis; Daniel W.E. Green, editor) and #1610 (Dennefeld et al., and Yamanaka et al.) the supernova SN 2008hy has been identified as a Type Ia supernova, and is believed to be near …
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December 2008 Planetary Conjunction
Wednesday, December 3rd, 2008 at
9:01 pm
When the sun goes down tonight, step outside and look south. Beaming through the twilight is one of the prettiest things you’ll ever see – a tight three-way conjunction of Venus, Jupiter and the crescent Moon. The event is visible from all parts of the world, even from …
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