Not-so-dark matter? Mysterious substance might leave red and blue 'fingerprints' on light
A new study suggests dark matter could subtly tint or polarize light, leaving faint color clues that next-generation telescopes might detect.
Skywatching
Night sky for tonight: Visible planets, stars and more in this evening's sky
Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.
MORE FROM SPACE...
Spaceflight
Rocket launch today: Is there a rocket launch and what time?
Follow Space.com's rocket launch blog for the latest on when the next rocket launch will be and how to follow it live.
On this day in space! Oct. 15, 1997: Cassini-Huygens launches to Saturn
On Oct. 15, 1997, NASA launched the Cassini spacecraft on a mission to explore Saturn and its moons.
NASA lays off 550 employees at Jet Propulsion Laboratory in sweeping 'realignment' of workforce
NASA has announced a new wave of layoffs at its Jet Propulsion Laboratory, as the agency undergoes a sweeping "realignment" of its workforce.
Science & Astronomy
A new private moon lander rises: Impulse Space throws its hat into the lunar ring
Impulse Space — which was founded by Tom Mueller, SpaceX's second-ever employee — just announced that it plans to build a robotic moon lander to help open the lunar frontier.
Deep-space dishes dot the desert | Space photo of the day for Oct. 15, 2025
Beneath the shadow of Chile's Licancabur volcano, the Atacama Large Millimeter/submillimeter Array (ALMA) peers into the coldest and most distant reaches of the universe.
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Northern lights - live updates
The latest aurora forecast for tonight help you make sure you're in the right place at the right time to see the northern lights.
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Rocket launch today
Follow Space.com's rocket launch blog for the latest on when the next rocket launch will be and how to follow it live.
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Night sky for tonight
Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.
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Live 4K video from space!
Witness live views of Earth from the International Space Station as it orbits the planet. Space streaming company Sen is broadcasting 24/7 from the ISS in beautiful 4K HD.
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On this day in space!
NASA astronaut Sally Ride became the first American woman in space aboard the space shuttle Challenger.
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ReferenceWhat is the moon phase today?
See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2025.
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ReferenceSpace calendar 2025
Keep up with all the rocket launches, astronomical events and mission milestones for 2025 with our space calendar.
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Search For Life
How excited should we be about the latest Mars potential biosignature discovery? 'It's arguably the best evidence we have so far'
What about those previously studied plumes of methane and meteorites potentially stuffed with the fossils of Martian microbes?
No near neighbors: Closest technologically advanced aliens may be 33,000 light-years from Earth
A new study suggests that, without plate tectonics and the right balance of carbon dioxide and oxygen, advanced alien civilizations may be exceedingly rare.
Could a Mars crater have once hosted life? NASA's Perseverance rover finds more evidence it's possible
Fresh analysis of Perseverance rover data reveals Jezero Crater experienced repeated episodes of water activity, strengthening the case for habitability and raising the stakes for Mars Sample Return.
Technology
NASA's Lunar Electric Rover rolls across Arizona | Space photo of the day for Oct. 9, 2025
NASA's Lunar Electric Rover was tested in Arizona's rugged desert terrain to simulate lunar exploration and refine designs for future missions.
New private 'Arc' spacecraft aims to deliver cargo from orbit to anywhere on Earth in less than an hour (video)
"We see a future where thousands of Arc spacecraft form a logistics network that provides transformative reach, resilience, and deterrence for the United States and its allies."
