The Summer Triangle — 3 stars, 1 seasonal mystery
The Summer Triangle dominates the night sky long after summer begins to fade. So what makes Vega, Altair and Deneb a distinctly summer sight?
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On this day in space! Sept. 10, 2011: NASA launches GRAIL probes to the moon to map lumpy lunar gravity
On Sept. 10, 2011, NASA's GRAIL spacecraft launched on a mission to the moon! Here's why the moon gravity mapping mission mattered.
LINK spacecraft gets close to NASA's Swift Observatory, but not close enough to save it
Operations aboard the Katalyst Space LINK satellite continue, despite the spacecraft's inability to complete its mission of boosting the orbit of NASA's Swift Observatory.
Scientists study 3,000 supernovas and discover that dark energy may be evolving
A catalog of almost 3,000 white dwarfs that exploded as type Ia supernovas after overfeeding on companion stars indicates that dark energy is changing over time.
The next 'Star Trek' movie will be inspired by 'Crimson Tide', and 'Strange New Worlds' latest episode just showed them how to do it
The chain of command collides with questions of right and wrong in this space-set spin on the '90s submarine classic.
Mercury is shrinking faster than we thought. What's going on inside of it?
Wrinkles on the surface of Mercury have revealed that the closest planet to the sun is shrinking faster than scientists thought.
Iconic Star Trek filming location spotted from space | Space photo of the day for Sept. 10, 2026
This new satellite image shows Vasquez Rocks in southern California, where Captain Kirk once faced off against the Gorn.
What comes after the moon? Artemis II commander and pilot shift to 'emeritus' status at NASA
Artemis II astronauts Reid Wiseman, Victor Glover and Jeremy Hansen are planning new journeys after their April 2026 moon mission.
Strange 'fast radio bursts' across the universe could help solve major cosmic mysteries: 'It's only the beginning'
Though their origins may be shrouded in mystery, fast radio bursts could be used to probe some of the universe's biggest puzzles, including the nature of dark matter and dark energy.
SpaceX launches classified mission for the US Space Force from California (video)
SpaceX launched the secret USSF-153 mission for the U.S. Space Force today (Sept. 10) from California's central coast.
This 'impossible' black hole merger may be explained by a warp in spacetime
A "forbidden" merger between two black holes may not have been quite as impossible as previously thought. New research that suggests the black holes involved were smaller than first calculated.
International Space Station astronaut gives out of this world tribute to honor Star Trek’s 60th anniversary
European Space Agency astronaut Sophie Adenot paid tribute to Star Trek’s real-world contributions to science and exploration by wearing Captain Pike’s Starfleet badge aboard the International Space Station on the show’s 60th anniversary.
Astronomers discover two stars that joined together to form a binary system just 60 years ago
Using ALMA, astronomers have watched as two stars come together to form a massive stellar binary, finding chaos that indicates they emerged from different backgrounds.
NASA's newly launched Roman Space Telescope will 'directly' image exoplanets. But what does that mean?
"When you look up at the night sky, most of those stars have planets."
We're about to exceed 1.5-degree global warming limit, according to the UN
"We can – and must – get on the right path."
US military practices orbital dogfighting in 1st-ever 'live fly' exercise in space
United States Space Command just held its first-ever "Apollo Maneuvers" exercise, which saw spacecraft maneuvering in orbit through simulated contested environments.
On this day in space! Sept. 9, 1982: The 1st private rocket, called Conestoga 1, launches from a Texas cattle ranch
On Sept. 9, 1982, the first private rocket, Conestoga 1, launched into space from a Texas cattle ranch. Here's why it mattered.
Indonesian volcanic eruption spotted from space | Space photo of the day for Sept. 9, 2026
Anak Krakatau erupted, and satellites were watching.
A photon from the biggest cosmic explosion since the Big Bang appears to have defied Einstein. Scientists may finally know how
A photon from the biggest cosmic explosion since the Big Bang, the gamma-ray burst nicknamed "the BOAT," should not have reached Earth, according to Einstein. Now scientists may know how it did.
A ghostly pyramid of light is about to appear before dawn — here's how to see it
A ghostly "false dawn" is about to light up the predawn sky — if you know where to look.