In Search of E.T.'s Breath [1-18-2002]
Advanced space telescopes might soon probe far-off worlds for the chemical signatures of alien life.  

Finding Distant Worlds [10-3-2001]
We know that there are at least 75 planets outside our own solar system, orbiting their distant stars. Although we have never seen any of these planets with our own eyes, several different techniques exist to detect these extrasolar planets.  

Scientists Hunt For Light Flashes From Extraterrestrial Civilizations [8-31-2001]
Astronomers are broadening the search for extraterrestrial intelligence (SETI) by looking for powerful light pulses coming from other star systems.  

Are We Alone? Where are our Nearest Neighbors? [8-6-2001]
Edward Weiler, NASA's Associate Administrator for Space Science discusses the search for life in the Universe. Are we alone?  

SETI and the Search for Life [7-30-2001]
Christopher F. Chyba of the SETI Institute discusses the search for life in the Universe. Are we alone?  

The Search for Life in the Universe [7-23-2001]
Neil deGrasse Tyson discusses the search for life in the Universe. Are we alone?  

The Meaning of Life [7-6-2001]
Sitting beneath a dark night sky, looking up at the vast array of stars, what human has not wondered, "Are we alone?"