🚀 go-pugleaf

dglmal@telis.com wrote:
> 
> If you look at our solar system we have a missing planet.  This missing
> planet has left plenty of evidence if we look between the orbits of Mars &
> Jupiter there should be a planet. However, what we find is called the
> Asteroid Belt.
> My theory is that the Asteroid belt several millions (160 or so) ago was
> really a planet that for some reason it exploded killing off the Earth's
> dinosaurs, destroyed all life on mars by blowing away most of Mar's
> atmosphere.
> This theory also explains why the earth has such a over size satellite and
> why the super continent Pangea broke into seven smaller continents that are
> now drifting around the globe.
> Check the mass of the belt and moon, I think you will find there is a
> enough dirt floating around out there to equal a good size terrestrial
> planet.
> --
> David Lawler
> dglmal@telis.org

You're about 40 years behind the times.  That's the kind of wild
speculation I read about as a kid in the 50's, when there was no real
data to base theories on.  Planetary science has left this stuff in the
trash heap.

The asteroids are not a broken planet, they never congealed into one.

The object that struck earth and killed the dinosaurs was more likely a
comet, but could have been a meteor, the jury is still out on that one. 
Also, that was 65 million years ago.  Similar events have occurred every
120 million years or so, the one that did in the dinos is only the most
well known in popular culture.

The continents are splitting and moving around constantly due to
internal circulation patterns in the earth's mantle.  Pangea was not a
one-time event.

The moon has been there for a lot more than 160 million years. Its
formation event was very early in the life of the solar system.  A
collision big enough to blast the moon out of the earth (which
apparently is what really did happen) would not just kill dinosaurs; it
would sterlize the earth.

As far as life on Mars -- how do you know its gone? It's quite possible
that subsurface microbial life is still there.