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Northern lights may be visible in 17 states (and maybe more) tonight
Auroras may be visible from Alaska to Illinois as an incoming coronal mass ejection is expected to slam into Earth.
Uranus's small moons are dark, red, and water-poor
…Except for Mab, which is even weirder than expected.
5 key takeaways from Jared Isaacman's 2nd NASA chief nomination hearing
Private billionaire SpaceX astronaut Jared Isaacman appeared before a Senate committee Dec. 3 for consideration as NASA administrator. Here are 5 big takeaways from the hearing.
A green flash at sunset | Space photo of the day for Dec. 8, 2025
This rare phenomenon is also called the green rim and it actually happens at every sunset.
On this day in space! Dec. 8, 1990: Jupiter-bound Galileo probe flies by Earth
On Dec. 8, 1990, NASA's Galileo spacecraft flew by Earth on its way to Jupiter.
NASA spacecraft were vulnerable to hacking for 3 years and nobody knew. AI found and fixed the flaw in 4 days
An AI start-up has found a vulnerability in security software protecting NASA's ground control communications with satellites in space.
Sun unleashes intense X-class solar flare, triggering radio blackouts across Australia
The powerful X1.1 solar flare from sunspot region 4298 sparked strong radio blackouts on the sunlit portion of Earth at the time of eruption.
Night sky tonight: See Orion twinkle in the southeastern sky
Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.
