for those of you who don't know what it is, its the theory that or sun has a companion star, possible a brown drawf which is very undetectable, or an uncharted red drawf. for more indepth info, go here: http://www.bol.ucla.edu/~swanson/
I personally think the idea is plausible. We are so far apart from everthing else(the nearest known star to us would take 80,000 years to travel to at a speed or around 20,000 mph), and there has to be something rattling the comets into orbit. It is said that if there is a Nemesis, then it would get within .5 light years up to 2.4 light years in is 26 million year orbit. Although a good deal closer then proxima centauri(4.1 light years), it is still way beyond the orbit of pluto.
While on the space subject, what do you guys think of the idea that pluto is not a planet, but that it is the biggest member or an asteroid belt at the edge or our solar system?
Originally posted by xm1092The evidence for this star is the time line for extinctions on earth.
for those of you who don't know what it is, its the theory that or sun has a companion star, possible a brown drawf which is very undetectable, or an uncharted red drawf. for more indepth info, go here: http://www.bol.ucla.edu/~swanson/
I personally think the idea is plausible. We are so far apart from everthing else(the nearest known star to us wo ...[text shortened]... a planet, but that it is the biggest member or an asteroid belt at the edge or our solar system?
The star would get withing about 3 trillion miles from the sun,
about one thousand times farther than pluto, and maybe be getting
close enough to the Oort Cloud (bunch of asteroids WAY past pluto)
and disturb their orbits, sending a whole lot of them barreling in
to the inner system, some of which crash into earth and starting
an extinction, which BTW we are a bit overdue for, the last one
happened about 26 million years ago.
That is not the only theory, however. There is another one which
puts the whole solar system in a corkscrew shaped orbit around
the galaxy going in and out of the galactic plane and encountering
stars along the way which disturb the Oort Cloud with the same
effect. This orbit is as if the solar system were bobbing up and down
on the surface of a big ocean, the ocean in this case being the
galactic plane which is only a few thousand light years thick so we would
be making about three of these up and down motions per one
hundred million year galactic orbit, the up and down motion
superimposed on the galactic orbit. Don't know if this motion
has even been proved or if its just a way of explaining the 30 million
year extinction cycle but it is an alternative to Nemesis.