Once you've got the makings of a star, gravity draws leftover gas and dust into a giant swirling disk. The dust continues to stick together, clumping into rocky asteroids, which eventually become orbiting rocky planets. And voila: a solar system!

NASA has spin-offs, and it's a huge and very impressive list, including accurate and affordable LASIK eye surgery.

For the film to 'earn' the right to be criticized on a scientific level is a high compliment indeed.

We still don't know for sure what the trigger was, but since we've discovered meteorites with supernova dust, we do know that a violent explosion rocked our cosmic neighborhood at the time of our birth, and it's quite possible that without it, our stable, stately solar system would never exist at all.

It seems that we're better at finding someone to blame for our problems than we are at finding creative solutions to fix them.

In five billion years, the sun will expand and engulf our orbit as the charred ember that was once Earth vaporizes. Have a nice day

Down there between our legs, it's like an entertainment complex in the middle of a sewage system. Who designed that?