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Why does the moon seem to follow me when I’m in a car?
Here's something you - or your kids - might have noticed: When you're in a moving car, earthly objects get left behind, but the moon seems to follow. Why?
April 19, 2024
When is the next total solar eclipse? Find out here!
When is the next total solar eclipse? If the April 8, 2024, total solar eclipse gave you the bug for eclipse-chasing, you'll want to know: Find out here!
April 9, 2024
Total solar eclipse of April 8, 2024. Experience it here!
The April 8, 2024, total solar eclipse crossed Mexico, the U.S. and Canada! Relive it by watching a replay of EarthSky's livestream here.
April 9, 2024
Beta Centauri is one of the Southern Pointer Stars
Beta Centauri isn’t as famous as Alpha Centauri, but together, these brilliant Southern Hemisphere stars have inspired legends and guided mariners.
April 4, 2024
April 8 solar eclipse maps are wrong along the edges
Your April 8 solar eclipse maps are wrong! The new map shows a narrower path of totality (in some places) than previously calculated.
April 2, 2024
Penumbral lunar eclipse to pass quietly March 24-25, 2024
The 1st of this year's 4 eclipses will flit by like a ghost in the night between March 24 and 25. It's a penumbral lunar eclipse, visible in North America. Charts and more from Guy Ottewell here.
March 24, 2024
Penumbral lunar eclipse March 24-25, 2024
A penumbral lunar eclipse happens overnight on March 24-25, 2024, bringing a subtle shading to the moon. See where it's visible and more, here.
March 24, 2024
Dark matter, a mysterious substance … What is it?
What is dark matter? It doesn't emit light. It hasn't been directly observed. Yet it appears to exist and to exert a major influence on galaxies.
March 22, 2024
On the equinox, are day and night equal?
Day and night are mostly equal on the equinox. There's a bit more daylight because the sun is a disk, not a point, and Earth’s atmosphere refracts sunlight.
March 19, 2024
Binoculars for stargazing: Our top 6 tips here
Want to know how to use binoculars for stargazing? Follow our top 6 tips to get the most out of viewing the night sky with a little optical aid.
February 29, 2024
