| Topic | Author | Replies | Last Post |
|---|---|---|---|
| Stephen Hawking: Why Isn't the Milky Way "Crawling With Self-D... |
 Mickey
|
13 | November 28, 2009 |
| Fermi Paradox |
Serge
|
2 | August 11, 2009 |
| The Odds of Intelligent Life in the Universe |
 Curry
|
22 | July 17, 2009 |
| Seth Shostak: Confessions of an Alien Hunter... |
Frozenstars
|
1 | June 25, 2009 |
| Big bang theory |
Jeremiah
|
1 | September 13, 2008 |