是發現外星人了嗎?
到底是什麼東西會影響宇宙生　命?

http://www.nasa.gov/home/hqnews/2010/nov/HQ_M10-167_Astrobiology.html

"to discuss an astrobiology finding that will impact the search for evidence of extraterrestrial life. Astrobiology is the study of the origin, evolution, distribution and future of life in the universe.