A recently discovered "super Earth" located around 25 light-years from our planet is not as massive as previously thought, ...

NASA is lighting the cosmos in red, white and blue in honor of the 250 t h birthday of the United States—and the show even ...

A newly discovered and potentially habitable exoplanet scientists are calling Earth’s “next-door neighbor” could be the next ...

A strange sphere found by a Florida family became one of America’s oddest UFO-adjacent stories. The real lesson may be less ...

Sunspot AR3229 erupted with an X2-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks in multiple wavelengths. Credit: NASA/SDO | edited by Space.com's Steve Spaleta Music: Jup ...

Three companies will send scientific payloads to the lunar surface to support NASA's first permanent base development.

In 1947, pilot Kenneth Arnold's report of strange objects over Mount Rainier and a fateful media misquote created the 'flying ...

When a bright fireball streaked across the Alaska sky last spring, the usual tools scientists rely on to track such ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a ...

Learn about a new working paper that argues that consciousness may not be limited to Earth-like biology, raising the ...

Stellar storms could be masking Alien radio messages.

More than two decades since the Concorde supersonic airliner last took to the skies, NASA has been flying an experimental ...