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.

Federal authorities say a North Korean military intelligence operative has been indicted in a conspiracy to hack into American medical centers, military bases and even NASA.

Officials say two NASA astronauts will remain at the International Space Station until engineers finish working on problems plaguing their Boeing capsule.

Saturday marks the 55th anniversary of the Apollo 11 moon landing by Neil Armstrong and Buzz Aldrin.

Boeing is closer to understanding what went wrong with its astronaut capsule in orbit, now that testing is complete on a spare thruster here on Earth.

SpaceX will use a powerful, souped-up capsule to shove the International Space Station out of orbit once time is up for the sprawling lab.

NASA is canceling a water-seeking moon rover because of cost overruns and launch delays.

NASA has confirmed that meteor streaked over the New York City skyline before disintegrating over nearby New Jersey.

The Webb Space Telescope has captured a pair of intertwined galaxies glowing in the infrared.

Two astronauts who should have been back on Earth weeks ago say they're confident that Boeing's space capsule can return them safely.

Four volunteer crew members who spent more than 12 months inside NASA’s first simulated Mars environment at Johnson Space Center in Houston have emerged from the artificial alien enviroment.

World UFO Day is being celebrated amid a surge in sightings and government studies on unidentified flying objects.

NASA says two astronauts will stay in space longer to continue troubleshooting Boeing’s capsule.

NASA has awarded SpaceX an $843 million contract to build the vehicle that will bring the International Space Station out of its longtime orbit of Earth when its operating lifespan ends in a few more years.

Two astronauts are spending extra time at the International Space Station as NASA and Boeing troubleshoot capsule problems that popped up on the way there.

The launch is scheduled to take place Tuesday from NASA's Kennedy Space Center.

NASA has canceled a spacewalk at the International Space Station after water leaked from an astronaut's spacesuit.

NASA's Voyager 1 spacecraft is sending science data again.

William Anders, the former Apollo 8 astronaut who took the iconic “Earthrise” photo showing the planet as a shadowed blue marble from space in 1968, has been killed when the plane he was piloting alone plummeted into the waters off the San Juan Islands in Washington state.

Boeing's space capsule has arrived at the International Space Station after encountering thruster trouble.

Boeing has finally launched NASA astronauts to the International Space Station after years of stumbles and delays.

Boeing has launched astronauts for the first time after years of delays.

The Hubble Space Telescope has suffered another breakdown that will limit its scientific discoveries.

A Chinese spacecraft has landed on the moon’s far side to collect soil and rock samples that could provide insights into differences between the less-explored region and the better-known near side.

Mission managers say last-minute computer trouble has nixed the latest launch attempt for Boeing’s first astronaut flight.

Boeing is now aiming for its first astronaut launch at the beginning of June.

New research indicates the sun's magnetic field originates much closer to the surface than previously thought.

Exploring the cosmos makes for happy employees, federal workers like to work from home like everyone else, and an agency that has struggled with low morale is showing improvement.

Ed Dwight, America's first Black astronaut candidate, has finally made it to space 60 years later, flying with Jeff Bezos’ rocket company.

The Webb Space Telescope has discovered the earliest known merger of black holes.

The sun isn't done yet.

Astronomers say a planet that's bigger than Jupiter is surprisingly as fluffy and light as cotton candy.

A thick atmosphere has been detected around a planet that's twice as big as Earth in a nearby solar system.

Boeing has called off its first astronaut launch because of a fluttering rocket valve.

Boeing is finally poised to launch astronauts to the International Space Station for NASA after years of delays and stumbles.

The Eta Aquarid meteor shower peaks this weekend.

A man arrested in 2019 for aggravated robbery is showing others how his second chance helped him turn his life around and join a NASA program.

The two NASA astronauts assigned to Boeing's first human spaceflight have arrived in Florida for their May launch.

NASA says it determined that an object that crashed through the roof of a Florida home last month was a chunk of space junk from equipment discarded at the International Space Station.

NASA is seeking a faster, cheaper way to bring rock samples from Mars to Earth.

If the clouds clear enough during the total solar eclipse, you could see Jupiter, Venus and maybe even Mars and Saturn.

Eclipse enthusiasts are staking out their spots across three countries, fervently hoping for clear skies.

A Russian space capsule with two women and one man has safely landed in a steppe in Kazakhstan after their missions aboard the International Space Station.

Researchers will be using the eclipse to study how to look at distant planets.

NASA wants to come up with an out-of-this-world way to keep track of time, putting the moon on its own souped-up clock.

Spectators who aren't near the path of totality or who get cloudy weather on eclipse day can still catch the total solar eclipse.

From the lab, to the outdoors, and even to outer space, multiple studies will be conducted during the total eclipse.

The cosmic sensation can be explained by pure science and mathematics based on decades of research, but it wasn’t always that way. In ancient times, many cultures believed an eclipse hung on a paranormal or mythical factor.

For Women’s History Month KSAT 12 is sharing the story of Ellen Ochoa, the first Latina astronaut to go to space.

A Russian spacecraft with three astronauts has successfully docked at the International Space Station.

Space weather forecasters have issued a geomagnetic storm watch through Monday.

A Russian Soyuz rocket carrying three astronauts to the International Space Station has blasted off two days after its launch was aborted at the last minute.

April's total solar eclipse promises to be a scientific bonanza, thanks to new spacecraft _ and cosmic chance.

Russia’s Roscosmos space agency has aborted the launch of three astronauts to the International Space Station about 20 seconds before they were scheduled to lift off.

The NASA astronaut who commanded the dress rehearsal mission for the 1969 moon landing has died.

Four astronauts from four countries are back on Earth after catching a ride from the International Space Station with SpaceX.

This spring break, you can have an up-close look at space exploration at a new exhibit at the Witte Museum.

With help from the San Antonio River Authority (SARA), students from the Advanced Learning Academy will hear from NASA astronaut Laurel O’Hara aboard the International Space Station.