NASA has discovered an interstellar comet that's wandered into our backyard.

Websites displaying legally mandated U.S. national climate assessments seem to have disappeared.

More than 200 people across a half-dozen southern states have reported witnessing a fireball streak across the sky, and NASA has determined that it was a meteor.

The first astronauts in more than 40 years from India, Poland and Hungary have arrived at the International Space Station, ferried there by SpaceX on a private flight.

India, Poland and Hungary are back in human spaceflight.

A Japanese company says a laser navigating tool doomed its lunar lander, causing it to crash into the moon.

A NASA spacecraft around the moon has photographed the crash site of a Japanese company's lunar lander.

A chartered spaceflight for India, Poland and Hungary's first astronauts in decades has been delayed indefinitely because of leak concerns at the International Space Station.

Elon Musk is dialing back his threat to decommission a capsule used to take astronauts and supplies to the International Space Station for NASA.

It turns out that looming collision between our Milky Way and Andromeda galaxies might not happen after all.

Taylor Jenkins Reid loves to research before writing.

Strauss' “Blue Danube” waltz is heading into space this month to mark the 200th anniversary of the composer's birth.

The latest selfie by NASA's Perseverance rover at Mars has captured an unexpected guest: a Martian dust devil.

NASA's Perseverance rover has detected the first aurora at Mars that's visible to the human eye.

New images from the James Webb Space Telescope reveal that Jupiter’s dazzling auroras are hundreds of times brighter than those seen on Earth.

The Eta Aquarid meteor shower is peaking.

An astronaut who missed out on the first all-female spacewalk is getting her chance six years later.

Three Chinese astronauts’ return to Earth has been postponed owing to weather conditions.

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.

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.

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.

Sens. Rick Scott and Ashley Moody want to move the NASA headquarters to Florida’s Space Coast when the lease in Washington, D.C., expires in 2028.

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.

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.

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.

Florida Governor Ron DeSantis held a news conference from the Kennedy Space Center in Merritt Island on Wednesday afternoon.

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.

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.