Technology

A troubled U.S. missile defense system planned for central Europe is strongly criticized by Russian president Vladimir Putin

The worst solar-storm season in half a century starts this year. These fiery explosions-which unleash as much energy as a billion hydrogen bombs-could, under the right conditions, black out cities and fry satellites. But new solar scopes can give us advance warning

Leading Edge Rocket Racing, which in October 2005 became the first team to join Peter Diamandis’s ambitious Rocket Racing League,...

A half-century of exploration has left the lunar surface littered with discarded spacecraft, and a bevy of upcoming missions means there's more moon mess to come

Photo: Shea Roggio/NYT The New York Times yesterday on the dwindling numbers of aviation hobbyists: The story explores a number...

Prepare to be astounded: the image on the right is in . . . three dimensions Seven months after its...

| | Photo courtesy ESO| This week, scientists announced the discovery of what some believe is the most promising earth-like...

| | Photo by O.P.Kopchevsky| On this day 46 years ago, Yuri Gagarin became the first human to be blasted...

PopSci reviews a bevy of reader-submitted flags and comes up with a winner. Drumroll, please...

| | Le natural phenomenon or le UF| Fancy yourself an amateur UFOlogist? One of those people who knows the...