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.
Sun

Sun news: A sunspot developed a strongest complexity

Sun news November 3, 2026: Few sunspots, but still auroras? Thank coronal holes! Their fast solar wind can stir Earth’s magnetic field for days.
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!
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.
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.
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.
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.
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.
Human World

November birthstone: Choose from either topaz or citrine

The November birthstone, topaz, comes in lots of colors. It's a much-loved gemstone in jewelry, with myths that date to ancient times. Or choose citrine.