Cmdr. Leroy Chiao -- NASA

The Universe Is Full Of Life, NASA Astronaut Says

A former NASA astronaut and commander aboard the International Space Station who has logged nearly 230 days in space says it's arrogant for humans to assume there aren't aliens sharing the universe with us. Leroy Chiao has completed four missions into space and performed six spacewalks. In an article published in the Christian Science Monitor Friday,…