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NASA Science Update Comet Siding Spring

1w ago
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NASA Science Update Comet Siding Spring Streamed live on Oct 9, 2014 NASA hosted a news briefing to outline the space and Earth-based assets that will have extraordinary opportunities to image and study a comet from relatively close... From: NASA Jet Pr

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Streamed live on Oct 9, 2014 NASA hosted a news briefing to outline the space and Earth-based assets that will have extraordinary opportunities to image and study a comet from relatively close range to Mars on Sunday, Oct. 19. Comet C/2013 A1 Siding Spring will miss Mars by only about 88,000 miles (139,500 kilometers). That is less than half the distance between Earth and its moon and less than one-tenth the distance of any known comet flyby of Earth. The comet's nucleus will come closest to Mars at about 11:27 a.m. PDT (2:27 p.m. EDT), hurtling at about 126,000 mph (56 kilometers per second), relative to Mars. The concerted campaign of observations by multiple spacecraft at Mars and by numerous NASA assets is directed at the comet and its effect on the Martian atmosphere. The observations of the comet may yield fresh clues to our solar system's earliest days more than four billion years ago. Panelists include: - Jim Green, director, Planetary Science Division (PSD), NASA Headquarters, Washington - Kelly Fast, program scientist, PSD - Carey Lisse, senior astrophysicist, Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland - Padma Yanamandra-Fisher, senior research scientist, Space Science Institute, Rancho Cucamonga Branch, California