The Spitzer Space Telescope has discovered the biggest but never-before-seen ring around the planet Saturn, NASA's Jet Propulsion Laboratory has announced. ...more

October 8, 2009

On July 20, 1969, people crowded around black-and-white TV sets to watch Neil Armstrong take man's first steps on the moon. ...more

July 16, 2009

By the end of the year, the world's greatest telescope should be able to see deeper into space and further back in time than ever. If all goes as planned, it will detect events closer to the big bang, explore the "cosmic web" of galaxies and intergalactic gas that make up the large-scale structure of the universe, and reveal much more about how and when distant stars and planets were formed. ...more

July 13, 2008

Merriam-Webster Inc. has added more than 100 new entries to its new edition of the Collegiate Dictionary. Here are some, along with the year in which Merriam-Webster first found them used in an English-language publication. ...more

July 7, 2008

CAPE CANAVERAL, Fla. (AP) -- Shuttle Discovery and its crew of seven returned to Earth on Saturday and capped a successful expansion job at the international space station, more spacious and robust thanks to a new billion-dollar science lab. ...more

June 14, 2008

The unprecedented downing of an errant spy satellite by a Navy missile makes clear that the Pentagon has a new weapon in its arsenal: an antisatellite missile adapted from the nation's missile defense program. ...more

February 22, 2008

"Lost" returns tonight on ABC. I know I'm supposed to be thrilled. Part of me is, I guess. But deep inside, doubt grows. "Lost" now resembles significant others I remember from my single days. I know it's someone I need to quit but can't, even though all my friends say I should. I'm starting to have trouble remembering why I was so into this relationship. I haven't understood a thing that was going on for months. ...more

January 30, 2008

New research is challenging the long-held position that comets and asteroids are as different as lions and lemurs. ...more

January 25, 2008

There is new hope that Earth, if not the life on it, might survive an apocalypse 5 billion years from now. ...more

September 16, 2007