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Human World
Spaceflight
Crew emerges from Mars habitat simulation after yearlong test
On October 31, 2026, 4 participants in NASA's Mars habitat simulation emerged after 1 year of testing for what astronauts might encounter on a visit to Mars.
November 3, 2026
Space
Swift spacecraft fiery reentry expected within the next 24 hours
The Swift spacecraft is falling back to Earth. It will likely burn up in our atmosphere on November 4. Will you see it?
Space
When will the Blaze Star erupt? Will neutrinos give us a warning?
Astronomers are still waiting for the Blaze Star to erupt. New research suggests neutrinos could provide an early warning of its next outburst.
November 3, 2026
Sun
Sun news: New sunspot turns magnetically complex
Sun news November 4, 2026: Newcomer sunspot AR4566 just turned magnetically complex. Could it fire an M- or even an X-class flare? Stay tuned!
November 3, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for November
Visible planets and night sky guide. Tomorrow morning, before dawn, look for brilliant Venus, bright Jupiter and red Mars. And watch for Taurid meteors!
November 3, 2026
Human World
Dark sky conference: Under One Sky, November 6-7
On November 6-7, 2026, DarkSky International will hold a virtual dark sky conference called Under One Sky. Learn more about it and light pollution here.
November 3, 2026
Earth
Space
How to see Earth’s shadow at sunrise and sunset
You can see Earth's shadow in both the evening and morning sky. It appears as a bluish band opposite the sun. And you might see the Belt of Venus too.
November 3, 2026
Space
Did comets seed life on Earth? A new study says — probably not
Did comets seed life on Earth? It's unlikely, a new study from the University of Cambridge says. It would have been a very rare occurrence.
November 1, 2026
Space
Do black holes split into smaller black holes?
Black holes sometimes merge. But could 1 split into 2 or more? A new study explores the conditions that might allow it, including extremely rapid rotation.
November 1, 2026
Space
Did the Viking 2 lander detect marsquakes in 1976?
New analysis shows that 2 possible marsquakes detected by Viking 2 were in the same region as nearly 1,000 others detected by the InSight lander decades later.
November 1, 2026
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