This month, Comet Hartley 2 has put on a good show for backyard astronomers. The comet’s vivid green atmosphere and auburn tail of dust look great through small telescopes, and NASA’s Deep Impact/EPOXI probe is about to return even more dramatic pictures when it flies past the comet’s nucleus on Nov. 4th.
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NASA has approved the retargeting of the EPOXI mission for a flyby of comet Hartley 2 on Oct. 11, 2010. Hartley 2 was chosen as EPOXI’s destination after the initial target, comet Boethin, could not be found. Scientists theorize comet Boethin may have broken up into pieces too small for detection.
The EPOXI mission melds two compelling science investigations — … Read the rest of this article
Two NASA spacecraft now have new assignments after successfully completing their missions. The duo will make new observations of comets and characterize extrasolar planets. Stardust and Deep Impact will use their flight-proven hardware to perform new, previously unplanned, investigations.
“These mission extensions are as exciting as it gets. They will allow us to revisit a comet for the first time, … Read the rest of this article
The Sun Now (Visible light)
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The Sun Now (H-Alpha light)
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Aurora Oval
(Northern Hemisphere) |
Aurora Oval
(Southern Hemisphere) |
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