NASA's oldest full-time astronaut is back home and doing well a week after wrapping up a seven-month space mission.

NASA's Lucy spacecraft has beamed back pictures from its latest asteroid flyby.

A Soyuz capsule carrying two Russian cosmonauts and one American astronaut safely landed Sunday in Kazakhstan, concluding a 220-day mission aboard the International Space Station.

NASA's Lucy spacecraft will soon swoop past a small asteroid.

Blue Origin launched a historic human spaceflight on Monday morning from West Texas, and the crew in the New Shepard rocket’s 31st mission was made up of all women.

Soil and rocks returned from the moon's far side suggest it may be drier than the side constantly facing Earth.

The nominee for NASA's top job is outlining his vision for space exploration, highlighting Mars.

The asteroid that once had a small chance of striking Earth and now might slam into the moon resembles a spinning hockey puck.

NASA astronaut Jonny Kim and two Russian crewmates have arrived at the International Space Station on board a Russian spacecraft.

A day at Uranus just got a little longer.

NASA's Webb telescope has captured pictures of the asteroid that caused a stir earlier this year when it topped Earth's hit list.

A bitcoin investor is headed to space with three polar explorers on the first flight to carry people over the North and South poles.

NASA's celebrity astronauts Butch Wilmore and Suni Williams say they would fly on Boeing's Starliner capsule again.

NAS's James Webb Space Telescope has captured Neptune’s glowing auroras in the best detail yet.

The Webb Space Telescope has captured a plume of gas and dust streaming from a star in the making, with a spiral galaxy as a stunning backdrop.

A NASA spacecraft will make its second close brush with the sun.

Venus will pass between the Earth and sun during what’s called an inferior conjunction.

NASA astronauts Butch Wilmore and Suni Williams aren’t the first to run late in space, and their 9 ½-month mission falls short of any endurance record.

A private lunar lander has captured the first high-definition sunset pictures from the moon.

On an episode of “The Story Behind the AP Story,” Associated Press space writer Marcia Dunn discusses the space odyssey of NASA’s two stuck astronauts.

NASA astronauts Butch Wilmore and Suni Williams have returned to Earth after being stuck in space for more than nine months.

NASA's stuck astronauts are heading home now that a replacement crew has arrived at the International Space Station.

It's lights out for the first private lunar lander to pull off a fully successful moon mission.

A SpaceX capsule has arrived at the International Space Station, delivering the replacements for NASA's two stuck astronauts.

The replacements for NASA's two stuck astronauts are on their way to the International Space Station.

College students, rocket scientists and math enthusiasts around the world are celebrating Pi Day.

A launch pad problem has forced a flight delay to replace NASA's two stuck astronauts.

NASA's newest space telescope has blasted off to map the entire sky like never before.

A private lunar lander is no longer working after landing sideways in a crater near the moon's south pole.

A privately owned lunar lander has touched down near the moon's south pole.

NASA is switching off two science instruments on its twin Voyager spacecraft to save power.

NASA's two stuck astronauts are just a few weeks away from finally returning to Earth after nine months in space.

Landing a spacecraft on the moon has long been a series of hits and misses.

A private lunar lander has touched down on the moon, delivering a drill and other experiments for NASA.

A private company is launching another lunar lander toward the moon.

Scientists have finally given the all-clear to Earth from a newly discovered asteroid.

Former NASA astronaut Dr. Bernard Harris Jr. said he is now working to ensure students have equitable access to education nationwide.

Scientists say the threat of a newly discovered asteroid has risen slightly in the past few weeks, as the world's telescopes rush to track its course.

NASA's two stuck astronauts may end up back on Earth a little sooner than planned.

Europe’s Euclid space telescope has detected a rare halo of bright light around a nearby galaxy.

This compact, USB-powered air purifier uses UV-C technology to break down odors and germs — no filters or chemicals required.

Jeff Bezos' rocket company has given NASA a brief taste of the moon's gravity without straying too far from home.

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons on the far side.

A newly discovered asteroid has a tiny chance of striking Earth in 2032.

A NASA spacecraft has returned asteroid samples that hold not only the pristine building blocks for life but also the salty remains of an ancient water world.

SpaceX suspects a fire may have caused its Starship to break apart during liftoff and send trails of flaming debris near the Caribbean.

Blue Origin has launched its massive new rocket on its first test flight.

SpaceX has launched a pair of lunar landers for U.S. and Japanese companies looking to jumpstart business up there.

NASA is pitching a cheaper and quicker way of getting rocks and soil back from Mars.

One of San Antonio’s oldest nonprofit organizations is celebrating a big win for their space instruments.

NASA has confirmed that a spacecraft has made the closest approach to the sun.

A NASA spacecraft is about to make the closest approach to the sun.

NASA's two stuck astronauts just got their space mission extended again.

New research suggests that Saturn's rings may be older than they look — possibly as old as the planet.

NASA has announced more delays in sending astronauts back to the moon more than 50 years after Apollo.

NASA's two stuck astronauts have hit the six-month mark in space.

President-elect Donald Trump has tapped a tech billionaire who performed the first private spacewalk to lead NASA.

Earth is parting company with an asteroid that's been tagging along as a “mini moon” for the past two months.

Two sister meteor showers are already flashing across night skies — and will peak a week apart.

NASA says an astronaut has been released from the hospital after returning from space.

Four astronauts are back on Earth after a space station mission that lasted almost eight months.

The Orionid meteor shower is about to peak.

A California school has planted a tree that’s out of this world.

A NASA spacecraft has blasted off on a quest to explore Jupiter's moon Europa and reveal whether its hidden ocean might hold the keys to life.

A massive NASA spacecraft has set sail for Jupiter and its moon Europa.

Space weather forecasters say a severe solar storm heading to Earth could stress power grids even more as the U.S. deals with major back-to-back hurricanes.

A spacecraft has blasted off to investigate the scene of a cosmic crash.

Solar storms may cause faint auroras across fringes of the northern United States this weekend.

NASA has switched off another scientific instrument on its Voyager 2 spacecraft to save power.

NASA’s Webb Space Telescope has identified new clues about the surface of Pluto’s largest moon.

The two astronauts stuck at the International Space Station since June are welcoming their new ride home.

SpaceX has launched a rescue mission for the two stuck astronauts at the International Space Station.

OceanGate co-founder Stockton Rush said the carbon fiber hull used in an experimental submersible that imploded en route to the wreckage of the Titanic was developed with help of NASA and aerospace manufacturers.

A Soyuz capsule carrying two Russians and one American from the International Space Station has landed in Kazakhstan, ending a record-breaking stay for the Russian pair.

A Soyuz capsule carrying two Russians and one American from the International Space Station has landed in Kazakhstan, ending a record-breaking stay for the Russian pair.

Boeing is replacing the head of its defense and space business.

Last year, five people hoping to view the Titanic wreckage died when their submersible imploded deep in the Atlantic Ocean.

The astronauts stuck in space say it was hard to see their Boeing capsule leave without them.

A tech billionaire has performed the first private spacewalk hundreds of miles above Earth.

A Soyuz spacecraft carrying two Russians and an American has docked at the International Space Station.

Paying passengers have lined up to rocket to space to experience a few minutes of weightlessness.

A billionaire has rocketed back into orbit, aiming to perform the first private spacewalk.

NASA has given the go-ahead to next month’s launch to Jupiter’s moon Europa.

Boeing’s first astronaut mission is finally over.

NASA says a small, harmless asteroid has burned up in Earth’s atmosphere.

Boeing will attempt to return its problem-plagued capsule from the International Space Station later this week — with empty seats.

NASA has cut two astronauts from the next crew to make room on the return trip for the two stuck at the International Space Station.

NASA's record-holding astronaut is urging his two stuck-in-space colleagues to stay positive and “keep up the good work."

A NASA rover on Mars is tackling a new challenge and climbing to the rim of a crater.

The two astronauts left behind at the International Space Station have both flown long space missions before.

NASA says it won't use Boeing's Starliner capsule to bring two stranded astronauts back to Earth.

NASA has decided it’s too risky to bring two astronauts back to Earth in Boeing’s troubled new capsule.

NASA will decide this weekend whether Boeing's new capsule is safe enough to return two astronauts from the International Space Station, where they've been waiting since June.

NASA says it's still deciding whether to keep two astronauts at the International Space Station until early next year and send their troubled Boeing capsule back empty.

A new study suggests Mars may be drenched beneath its surface, with enough water hiding in the cracks of underground rocks to form a global ocean.

Mars and Jupiter are cozying up in the night sky for their closest rendezvous this decade.

NASA is on the verge of deciding how and when to bring two astronauts back from the International Space Station, after running into trouble with their new Boeing capsule.

NASA says chances are growing that two test pilots who flew a new Boeing capsule to the International Space Station in June may have to switch to SpaceX for a ride home.

NASA is delaying its next astronaut launch to buy more time at the International Space Station for Boeing's troubled new crew capsule.

A Texas church has not one — but two — members aboard the International Space Station.