https://gregladen.com/blog/2007/11/26/stumblevideo-why-do-people-lau/ Mon, 26 Nov 2007 17:09:27 +0000 hourly 1 https://wordpress.org/?v=6.4.8 https://gregladen.com/blog/2007/11/26/stumblevideo-why-do-people-lau/#comment-927 Mon, 26 Nov 2007 17:09:27 +0000 http://scienceblogs.com/gregladen/2007/11/26/stumblevideo-why-do-people-lau/#comment-927 Nice job.If the ice chunk was moving at cometary speed (30 km/s), then almost certainly it would be native to the solar system. A rogue from interstellar space — this nitwit’s claim — would have hyperbolic velocity with respect to the Sun, with no real limit on the ‘excess’ (hyperbolic minus parabolic), and so would be considerably more energetic than the analysis given.

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