I thought the general belief, from the lack of an imapact crater, is that the object was a comet, i.e. mostly ice. But perhaps I'm not up-to-date on this subject. -- Gene
________________________________ From: Hans Havermann <gladhobo@teksavvy.com> To: math-fun <math-fun@mailman.xmission.com> Sent: Thursday, April 12, 2012 5:48 PM Subject: Re: [math-fun] Interplanetary microbes?
Warren Smith:
This event must have been caused by a meteor...
A popular, though not universal, opinion. Astrophysicist Wolfgang Kundt, for example, still champions Andrei Olchowatow's volcanic outblow explanation for the Tunguska event.
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