Does anyone believe that the solar system has a second star? There is a theory that the solar system has a second, larger star called Nemesis. It has an oval shaped orbit around the sun, curving very close to the sun and then traveling 1 light year away, interrupting the asteroid belt surrounding our solar system, and sending a meteor straight at Earth. 1 orbit of Nemesis takes 26 million year, thus explaining why we get hit by a meteor every 26 million years. But the thing I don't understand is, when the last meteor hit, why did no one see a second, massive sun in the sky? Or why didn't the Earth become extremely hot as the sun passed?