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Space
Swift spacecraft fell back to Earth in a fiery blaze on Wednesday
The Swift spacecraft fell back to Earth as a fiery streak of light on Wednesday. See videos here of the blazing reentry into Earth's atmosphere.
November 4, 2026
Space
A new mini-moon for Earth! Meet 2026 QQ8
Earth has another new mini-moon! The little space rock 2026 QQ8 began orbiting Earth in April and will stay through 2026.
November 4, 2026
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 4, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for November
Visible planets and night sky guide. Tomorrow, look for the peaking South Taurid meteors, and Venus will hang near Spica at dawn.
November 4, 2026
Sun
Sun news: Solar Cycle 25 update
Sun news November 4, 2026: Newcomer sunspot AR4566 just became magnetically complex. Could it fire an M- or X-class flare?
November 4, 2026
Constellations
Pegasus the Flying Horse, and the best sky story ever
Pegasus the Flying Horse is the 7th largest constellation. It dominates fall skies in the Northern Hemisphere and has a famous asterism called the Great Square.
November 4, 2026
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
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
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