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00:48:40
Searching for extraterrestrial life: is it telephoning aliens or really complicated math equations? Join Senior Scientist Paul Doherty, NASA Ames planetary Scientist Eric Wegryn, and SETI's Senior Scientist Seth Shostak as they explore how to find planets that could support life. How many of these planets are there? How did we find them? When will we know for sure?

Project: SETI | Browse All

Date: December 10, 2005
Format: Demonstration / Activity
Category: Popular Science
Subject(s): Astronomy/Space Science