Scientists moved Saturday to prepare the world's largest atom smasher for exploring the depths of matter after successfully restarting the $10 billion machine following more than a year of repairs.

Astronaut Randolph Bresnik is a new dad again, after launching into space and taking a spacewalk, all for the first time.

Russian spaceship designer Konstantin Feoktistov, the only non-Communist space traveler in the history of the Soviet space program, has died at the age of 83.

A spacewalking astronaut put aside the impending birth of his daughter and blazed through his first-ever venture outside the International Space Station on Saturday.

Does the Internet make people gullible? A recent outbreak of fake death reports on Twitter have some people wondering if too much information too quickly is bad for us.

Science editor Alan Boyle's Weblog: Space ballooning hits new heights in an HDTV commercial showing an armchair floating against the backdrop of our curving planet, almost 100,000 feet up.

Two fingers and a tooth removed from Galileo Galilei's corpse in a Florentine basilica in the 18th century and given up for lost have been found again and will soon be put on display.

You know what to get your book-loving dad and social-networking sister, but what about that seriously geeky pal? PC Worlds found gifts even geeks who have everything would like.

The earliest that anyone who orders the $259 device on Friday or later will receive it is Jan. 4, 2010, the nation's largest bookseller said Friday.

Since Tony Hawks Proving Ground Tony Hawk has dominated the skateboarding genre in video games with a lot of critical acclaim. 12 games later we come to his latest game Tony Hawks Ride but this time there is big change.(msnbc.com)