NASA's SpaceX Crew-5 splashes down on Earth after 5-month mission aboard ISS
The crew spent 157 days in orbit.
'Comet of a decade' to whiz past Earth in likely first visit in 4.5 billion years
While naked-eye comets are rare C/2023 A3 could be among the brightest in a decade.
NASA discovers asteroid that has slight chance of hitting Earth on Valentine's Day 2046
NASA's Planetary Defense Coordination Office has been tracking a new asteroid named 2023 DW that has a very small chance of impacting Earth on Feb. 14, 2046.
Artemis II set to send humans to orbit the moon in 2024 after historic rocket launch exceeds expectations
Artemis I mission launched on Nov. 16, 2022 and then returned on Dec. 11, 2022. Uncrewed, it tested the Orion spacecraft and the SLS rocket, the most powerful rocket ever used.
Worm moon: When to see March’s full moon
The time has come for March’s full moon to light up the night’s sky, and if conditions are clear, it could be visible for several nights.
Watch: New video from Hubble space telescope captures asteroid-smashing debris from successful DART mission
The Double Asteroid Redirection Test (DART) mission involved slamming a 1,200-pound spacecraft about the size of a vending machine into an asteroid at 13,000 miles per hour.
Watch again: NASA's SpaceX Crew-6 lifts off from Florida, now bound for space station
SpaceX launched four astronauts to the International Space Station for NASA on Thursday, including the first person from the Arab world going up for an extended monthslong stay.
Stunning video shows Mercury passing by the sun
A satellite had a front-row seat as Mercury moved around the giant star.
James Webb telescope finds massive galaxies dating back to beginning of universe
Astronomers have discovered what appear to be massive galaxies dating back to within 600 million years of the Big Bang.
Japanese startup announces balloon flights taking passengers up to space
In the tour's unveiling Tuesday, the company said it has developed an airtight two-seat cabin and a balloon capable of rising to a 15-mile altitude.
Solar storm speeding toward Earth could affect radio, GPS signals on Friday
The geomagnetic storm may affect satellite operations and could even lead to weak power-grid fluctuations.
Watch: Green light beam spotted over Hawaii likely came from Chinese satellite, astronomers say
A telescope captured the unusual light beam flashing from left to right across the sky in Hawaii in late January.
SpaceX ignites giant Starship rocket in crucial pad test
SpaceX is a big step closer to sending its giant Starship spacecraft into orbit, completing an engine-firing test at the launch pad on Thursday.
Green Comet E3 will appear near Mars this weekend: Here’s where to look
Skygazers will have another chance to see Comet E3 this weekend as it appears close to the red planet.
Here's when to watch for February's full snow moon
If skies are clear this weekend, the last full moon of meteorological winter will light up the night sky.
Satellite, rocket body miss collision by only 20 feet in what could have been ‘worst-case scenario’
The collision could have sent thousands of new debris fragments into space that would remain for decades.
Remembering space shuttle Columbia, 20 years later
On a sleepy winter morning in 2003, most Americans had no idea that seven astronauts were gliding back to Earth after more than two weeks in space. But the whole nation would soon know that space shuttle Columbia was not going to make it home.
'Bear' on Mars captures internet's imagination
Is it a bear? A "doge"? The internet has mixed opinions about an image from NASA showing an animal's face on Mars.
Green comet sighting: Here's when to see this celestial view unlikely to return for millions of years
This celestial sighting is a bit like space-speed dating. Astronomers only just learned of Comet C/2022 E3's existence, and it will be gone before we know it. Learn how it was discovered and why a naked-eye comet is rare.
Radio signal 9 billion light-years away: What it means and where it came from
Astronomers said it marked the first time this type of radio signal has been detected at such a large distance. "It’s the equivalent to a look-back in time of 8.8 billion years."