Pictures Of Halley's Comet

Ninth Planet Possibly Exists Named Tyche

There could possibly be a ninth planet named Tyche that is beyond Pluto. If this planet does exist, it will be the largest planet in the solar system:about 4 times the size of Jupiter! (all these pictures are what Tyche could look like)

Meteorite Chunk Offers Clues To Solar System Evolution

The dust grains that eventually coalesced into our solar system's planets bounced around like pinballs over vast distances nearly 4.6 billion years ago, a new meteorite study suggests.

Scientists studying a tiny chunk of a meteorite say it likely formed close to the sun, was ejected near today's asteroid belt and then returned to the scorching inner reaches thereafter. The results should help astronomers better understand the early days of our solar system, and could shed light on planet-formation processes in general, researchers said.

For more info on this go to this link for the full news story: http://www.msnbc.msn.com/id/41893505/ns/technology_and_science-space/