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.

Butch Wilmore and Sunita Williams spoke publicly for the first time about their unplanned nine-month flight at the International Space Station.

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

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.

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.

An extraordinary space journey that was initially set to last just eight days and was extended to a remarkable 286 days because of technical difficulties has finally reached its end.

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

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

The protest comes a week after NASA announced it would be shutting down three of its offices and layoff several staff members as the company prepares to reduce its workforce under the Trump administration.

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.

NASA is set to shut down three key offices, impacting its workforce as part of a federal initiative.

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.

Charges against former NASA engineer Eric Sim have been dropped.

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

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.

NASA's annual Day of Remembrance honors fallen astronauts with ceremonies nationwide, including wreath-laying at Arlington National Cemetery led by Jim Free and events at various NASA centers.

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.

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.

A festive holiday portrait taken aboard the International Space Station has social media buzzing — but not for the reasons NASA might have expected.

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.

From lunar terrain vehicles to virtual space tours, celebrate National STEM Day at Space Center Houston with exciting activities for all ages.

Houston plays a big role in ensuring astronauts’ votes count

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.

NASA astronaut Matthew Dominick shared stunning timelapse footage of Hurricane Milton from the International Space Station.

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.

Inside a lab at MD Anderson Cancer Center, scientists like Dr. Cassian Yee want to do two of the things that Houston does best: Space exploration and medical advancements

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 and Boeing have been monitoring two issues with the Starliner: one with a set of thrusters and the other involving helium leaks in the vehicle’s propulsion system.

Avery Baker, 16, was last seen at her father’s home on Thursday, August 15.

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.