A hidden structure at the farthest reaches of our solar system is challenging long-held theories. Using advanced simulations, a NASA supercomputer has revealed that the Oort Cloud, a vast shell of icy ...

In fact, a model from the University of Colorado ... The final day. By now, the sun's extreme gravity stretches the planet into an oval shape, and magma begins to leak through the crust.

For example, Earth orbits the sun not because it is being pulled ... things that the theory cannot adequately explain. "This ...