For a brief, but exciting, time last year, Earth had two moons. A small asteroid lingered close to our planet in its orbit ...

These actors went to the dark side and it paid off! Welcome to WatchMojo, and today we’re counting down our picks for the ...

Reintroducing Hawaii's sacred crow, how desert ants find their way, pterosaurs paddle-like tails, and how gophers rebuild ...

An unusual looking 33-foot-long object discovered orbiting Earth last year may have come from a surprising place.

What an amateur astronomer recently took to be a newly-discovered asteroid turned out to be a Tesla Roadster voyaging through ...

The asteroid is about 33 feet (10 meters) across and poses no danger to Earth. It joins another known lunar asteroid ...

Earth's temporary asteroid friend last year was a chunk of its real moon that had been blasted into space thousands of years ...

In the United States, funding for planetary defense has long had strong bipartisan support both inside and outside of ...

Scientists think a small rock discovered near Earth last August was hurled into space by an ancient impact on the lunar surface.

Emily Simpson, a passionate space enthusiast and recent Florida Tech graduate, has published groundbreaking research that imagines an alternate version of our solar system. Instead of the asteroid ...

The sun’s light exerts a tiny force called “solar radiation pressure” on objects in space. Lightweight human-made debris, ...

NASA's documentary, “Planetary Defenders,” will take audiences inside the high-stakes world of asteroid hunting and planetary defense.