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RE: Dinosaurs in space?
On Thu, 17 May 2001 20:16:14
Ken Kinman wrote:
>
>
>Tom,
> I totally agree that stromatolites were probably our first fossilized
>"astronauts". That thought had never occurred to me. But the only decent
>chance of finding them would be on the moon. Gravity tends to pull most
>debris toward the center of the solar system, so finding Mars rocks on Earth
>is more likely than finding Earth rocks on Mars (the escape velocity factor
>you mentioned would enhance this tendency further).
> The most likely planets with Earth rocks would therefore be Venus and
>Mercury, but their extreme environments aren't very conducive to rocks lying
>around unchanged like they would on the Moon (which also has the advantage
>of being so close to us).
> However, the notion (mentioned in this report) that we might find
>dinosaur bones on the Moon (especially with muscle and skin still attached)
>is obviously absurd (but I wouldn't be as diplomatic as Horner was in how I
> criticized it). But who knows, we might someday find some pulverized
>dinosaur bone bits on the Moon. But with the greater amounts of
>stromatolite bits (not to mention non-fossil rocks and dust from all over),
>it would be like looking for a needle in a haystack.
> By the way, if you found a bone "bit" the size of a tiny grain of sand,
>would you be able to distinguish mammal bits from reptile bone bits (much
>less narrow it down to dinosaurs)? How big would the bit have to be to
>distinguish mammal bone from reptile bone? (I guess it would probably vary
>among different bones of the body, and tooth bits might be better than most
>others).
> Speculation is fun, but if this guy Shull thinks he is going to find
>chunks of dinosaur thighs on the moon, he is in for a very rude awakening,
>not to mention a lot of jokes about dinosaur moon steaks.
> -----Ken
I wouldn't have been as diplomatic, either, and I also think the hypothesis is
absurd. However, we must all be reminded that a dinosaur has been in space.
In 1998 (or was it 1997??) the now-fired director of the Carnegie Museum (a
former astronaut) arranged for a nice Coelophysis skull to make its way onto
one of the space shuttles. And who said Dennis Tito was the first space
tourist? The last time I checked this skull was still on display at the
Carnegie.
Steve
---
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