Did meteorites seed Earth the building blocks of life?
February 2013 | By Ker Than
December 2011 | By G. Wayne Clough
Scientists are probing deep beneath the surface of our nearest star to calculate its profound effect on Earth
April 2011 | By Robert Irion
Astrophysicist Lisa Kaltenegger analyzes light from distant stars for evidence we're not alone
October 2007 | By Charles Seife
One professor's mission to revise the calendar
January 01, 2007 | By Chai Woodham
In a new book written with his wife, Nancy Abrams, cosmologist Joel Primack argues that the universe, far from being a meaningless void, was meant for us. Sort of.
July 2006 | By Jerry Adler
The Smithsonian Astrophysical Observatory probes the universe for the unimaginable
July 2003 | By Lawrence M. Small