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On 13/11/2014 08:44, Pastor Ravi Holy wrote:
My beef is the BBC harping and hyping on about the comet's speed. They obviously don't realise our own Moon is hurtling around the Sun (along with the Earth) at 30 km/sec, 108,000 km/hour, 67,500 mph. If we can match speed with the Moon or Mars or any other planet,, what's the big deal matching speed with a comet? It is a bit harder matching position, speed and orbit with a comet in a near parabolic orbit than for a planet in a circular one. Incidentally some new pictures from the surface on BBC now: http://www.bbc.co.uk/news/science-environment-30034060 It seems they think it bounced maybe 100m after touchdown - the rocks photographed around it look pretty mean and angular. -- Regards, Martin Brown |
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