A faint glow in the Milky Way could be a dark matter footprint
The century-old mystery of dark matter — the invisible glue thought to hold galaxies together — just got a modern clue.
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
Watch SpaceX launch its record-breaking 139th mission of the year today
SpaceX will launch its record-setting 139th mission of the year today (Oct. 23), and you can watch the action live.
On this day in space! Oct. 23, 2007: Space Station's Harmony module launches on STS-120
On October 23, 2007, the space shuttle Discovery launched the Harmony module to the International Space Station.
Space calendar 2025: Rocket launches, skywatching events, missions & more!
Reference Keep up with all the rocket launches, astronomical events and mission milestones for 2025 with our space calendar.
Science & Astronomy
Scientists watch rings forming around a solar system world for the 1st time
Chiron is forming a ring system, and scientists seem to have caught the action.
Earth photobombs the sun in satellite image | Space photo of the day for Oct. 23, 2025
A new image from NOAA's GOES-19 satellite has captured a rate celestial cameo: Earth itself appearing in the view of the spacecraft's solar coronagraph.
Entertainment
Neil deGrasse Tyson on his new book and the hidden dangers of defunding science: 'That will ultimately bite you in the ass' (exclusive)
We spoke with Neil deGrasse Tyson about his new Q&A book "Just Visiting This Planet: Further Scientific Adventures of Merlin From Omniscia" arriving on Oct. 21, 2025.
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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
The UK military says Russia targets its satellites on a weekly basis. What can be done about it?
Russia is targeting UK space infrastructure, and in particular military satellites, on a weekly basis, according to the head of UK Space Command.
