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 November 3: How a quiet sun still stirs up auroras
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.
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

Just before sunrise and after sunset, you can spot Earth's shadow. Look west at sunrise and east at sunset. Learn more about Earth's shadow here.
Astronomy Essentials
Tonight

Visible planets and night sky guide for November

Visible planets and night sky guide. Tomorrow morning, the moon will hang close to Mars, Jupiter and Regulus. And watch for Taurid meteors!
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.
Space

New dwarf planet discovered by Rubin?

Astronomers using the Rubin Observatory have discovered a new dwarf planet candidate. It lies just beyond the orbit of Pluto.