Our crib sheet for the hard-core techie is at hand. From designer flash drives to the holy grail of remotes, these offerings are sure to please even the fussiest geek on your list.

The world's largest atom smasher made another leap forward Monday by circulating beams of protons in opposite directions at the same time in the $10 billion machine after more than a year of repairs, organizers said.

A pair of astronauts stepped out on the third and final spacewalk of their mission Monday to take care of some odd jobs at the International Space station.

A new report records 17,650 species living below 656 feet, the point where sunlight ceases. The findings were the latest update on a 10-year census of marine life.

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.