Posted on 07/13/2010 2:25:11 PM PDT by sodpoodle
Am I the only one that reads stories like this and wonders how theories such as this get stated as if they are absolute fact?
Any links to the science behind these claims of events happening millions of years ago - would love to read how they postulate and prove this?
That’s actually a safe prediction, since he’d only have to come up with *one*. ;’)
Hmm, I don’t think there was one. So far the pre-Cambrian fossils consist of microfossils. There were impacts though, big ones. The impact rates rose about 400 million years ago, about the same time that impact rates rose on the Moon. I don’t think that’s coincidental. :’)
The tipping of Uranus (ew) has been explained different ways, but with a “normal” system of moons, the planet must have tipped kinda sudden like due to huge impact; or there was some kind of encounter that caused the tipping, and the moon system was acquired at a later time (retrograde orbit is often considered diagnostic of capture, so having Uranus tipped counts, with the resulting moons’ orbits lying basically in the ecliptic and prograde by concensus with the rest of the planets’ moon systems); or there was some kind of later acquisition of the deep liquid atmosphere which came in cockeyed, flipped the planet’s axis, and the Uranian moon system used to be much bigger, some of the moons wound up lost, pulled in, etc; or the impact (a very big one) came in from what we’d call the polar direction, i.e., perpendicular or so with the solar ecliptic.
Sorry, I got carried away.
“I’m Commander Shepherd, and this is my favorite post on the thread.”
Oh yeah, but regarding destroying an interloper of this kind, it’s small enough, a nuke might work, nudge it into a different trajectory; bigger, and it would require our pushing a pushable, smaller, but heavy enough other rock into the interloper rock, and give it a big knock. With this in mind, it would be a good idea to compile a thorough list of objects in retrograde orbits around the Sun. That is a double benefit, because those critters are also a bit more risky to have floating by. :’)
That’s what I’m saying. A planet sized object comes cruising by, not necessarily in a polar direction (how many large objects are traveling that kind of path in a solar system, or otherwise???. And just how does that much “deep liquid” come to be floating around that it can be “acquired” “later”?
But back to the basic proference. Extinctions happen every 27 million years. If we nuke Iran out of existence tomorrow, does that changed the 27M configuration. And if yes, by how much?
I’m telling you there is some grant money out there we should be getting our share of.
could happen anytime from tomorrow or anytime in the next 2000 years... it is anyones guess.
Bump to read tomorrow... if there is one.
ELE
Women and children hardest hit!
And (do I really need to say it?).....
Bush's fault.
I like how you think. ;’)
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