Where is complex alien life hanging out in the universe?
This fall, Earth has about a 1-in-7,000 chance of getting an uninvited extraterrestrial visitor: asteroid 2006 QV89.
If Godzilla were a real creature, his incredibly rapid growth spurt on the big screen would be off the charts, even setting evolutionary records, a new report finds.
The U.S. Navy plans to set up an official reporting and investigative system that will monitor reports from its pilots about UFOs.
Earth just got another dazzling glamour shot, thanks to a satellite that snapped its photo on the March 20 spring equinox.
And for the first time, physicists have recorded the wild drum beats rippling from the magnetic poles.
Now that the government shutdown is over, federal agencies have finally released an early edition of the World Magnetic Model, almost a full year before the next one was scheduled to be released.
There's a giant void hiding under the Antarctic ice, and it's growing larger and more menacing by the day, a new study using satellite data finds.
Earth's north magnetic pole is on the move, unpredictably lurching away from the Canadian Arctic and toward Siberia.
This past year, engineers launched many oddities into space, including a Tesla Roadster, a gold-plated canopic jar and a cosmic disco ball.
What happens when you cross a blimp with a plane, and give it a few helicopter abilities? A lighter-than-air plimp-hybrid airship is born, according to a Seattle-based company looking for investors.
This November, onlookers will get to hear a so-called "quiet" sonic boom as a supersonic military jet zips through the skies of Galveston, Texas, according to NASA.
In a new book, this scientist says glaciers, not Neolithic people, carried the huge rocks to Stonehenge.
A book that the late physicist Stephen Hawking signed in 1973, back when he was still able to hold a pen and scrawl out his autograph, is hitting the auction blocks.
Tesla founder and CEO Elon Musk just paid a rare compliment to his own species, calling humans "underrated" on Twitter last week.
Satellites circling Earth have mapped an elusive, invisible force in unprecedented detail: the magnetic field created by the currents in the planet's salty oceans, according to new research.
Sprinkling large amounts of salt into the atmosphere could stave off climate change, a group of researchers has proposed.
What do the Powerball jackpot and Tiangong-1, the Chinese space station hurtling toward Earth, have in common? It's highly unlikely that either will physically impact your life in the slightest way.
Moon-based detritus includes leftover urine-collection kits, an olive branch and tons of robotic equipment from lunar probes.