Calla Cofield

NASA is developing a spacesuit with a built-in toilet system, something the agency hasn't used regularly since the Apollo era.

An exclusive video from National Geographic shows Elon Musk's surprised, joyful reaction to the successful first launch of a SpaceX Falcon Heavy rocket on Feb. 6.

An amateur astronomer appears to have made contact with the Imager for Magnetopause-to-Aurora Global Exploration (IMAGE) satellite, which lost contact with NASA in 2005.

Celebrate this week's Super Blue Blood Moon — which includes a total lunar eclipse — with some moony cocktails.

SETI pioneer Jill Tarter thinks the "search for extraterrestrial intelligence" needs to undergo a rebranding.

Writer Ursula K. Le Guin, whose work spanned multiple genres including science fiction, fantasy, poetry and essays, died on Monday (Jan. 22) at the age of 88.

Efforts to heal the hole in Earth's ozone layer over Antarctica appear to be paying off, according to a first-of-its-kind study that looked directly at ozone-destroying chemicals in the atmosphere.

A lucky visitor to NASA's Kennedy Space Center snapped a photo of the payload container that will fly aboard SpaceX's new megarocket, the Falcon Heavy.

Scientists searching for ghostly subatomic particles called neutrinos from cosmic sources made an important stride in understanding how to catch these slippery specters.

A massive, glowing bubble of light erupted in the sky above northeastern Siberia, which may have been created by a test missile launch.

Why does DARPA want to build a reusable space plane? An agency representative explains what small satellites have to do with national defense.

A new documentary about Jane Goodall draws on over 100 hours of unreleased footage to provide a new look at the life of this revolutionary researcher.

NASA's Cassini spacecraft broke up in Saturn's atmosphere this morning, bringing an end to its historic 13-year mission at the ringed planet that was marked by incredible discoveries.

Many Earth-observing satellites are keeping their eyes on Hurricane Irma as islands in the Caribbean brace for the storm's arrival.

Astronauts currently on the International Space Station have been sending well wishes to their colleagues on the ground as heavy rainfall and flooding from tropical storm Harvey continue.

Can you photograph the phenomenon with my cell phone or tablet? With a few caveats, the answer is "yes."

The first total solar eclipse to cross the contiguous United States in 99 years occurs today and millions of skywatchers are ready to watch.

Ancient stories and superstitions about eclipses can be found in every corner of the globe, but modern skywatchers aren't immune to misinformation about these celestial events.

Multiple NASA satellites have captured images of the dramatic and long-awaited birth of one of the largest icebergs ever recorded, which broke off an Antarctic ice shelf this week.

In what appears to be a historic first, a chicken sandwich was successfully carried to the edge of space today aboard a high-altitude balloon.

A Kentucky Fried Chicken sandwich is now scheduled to travel into the stratosphere on Thursday (June 29) aboard one of World View Enterprise's Stratollite high-altitude balloon systems.

How much does the temperature drop during a total solar eclipse? It depends on season and location, but get ready for a sudden and noticeable chill.

A phenomenon first predicted by Albert Einstein has been used for the first time to measure the mass of an individual star. The finding has helped settled a century-old dispute.

It's not a fluke: For the third time, the LIGO gravitational wave observatory has detected ripples in space-time caused when two black holes circle each other at mind-bending speeds and collide.