Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
What causes an aurora, the northern or southern lights?
The aurora, or northern and southern lights, occur when charged particles from the sun interact with Earth's magnetic field. Read more here.
March 7, 2026
New moon map reveals areas of recent tectonic activity
A new moon map and study from the Smithsonian Institution reveals ridges in the dark lunar plains showing evidence for recent tectonic activity on the moon.
March 6, 2026
Puppis the Stern, adrift on the Milky Way
Puppis the Stern was once part of a larger constellation known as Argo Navis the Ship. Northerners can spot Puppis far to the south on March evenings.
March 6, 2026
See the best deep-sky photos of February 2026
Enjoy this gallery of deep-sky photos for February 2026 from our EarthSky community. If you have a great photo to share, send it in, too. We love to see them!
March 6, 2026
Water bears on Mars: Tardiguardians of the Galaxy?
Scientists at Penn State said tiny water bears on Mars could help future astronauts survive there. They nicknamed them Tardiguardians of the Galaxy.
March 6, 2026
Zodiacal light on spring evenings
The zodiacal light is an eerie light extending up from the horizon. During the months around the March equinox is a good time to see it. How to see it, here.
March 6, 2026
Asteroid 2024 YR4 won’t hit the moon after all
NASA said on March 5, 2026, that asteroid 2024 YR4 will not strike the moon in 2032. New observations have now ruled out previous probabilities.
March 5, 2026
Lifeforms can planet-hop on asteroids and survive
Researchers performed studies that show life forms could survive an asteroid impact and therefore hitch a ride into space on the resulting debris.
March 5, 2026
Why do female caribou have antlers unlike other female deer?
A new study says female caribou chew shed antlers to get essential minerals, helping feed their calves and gradually enriching the Arctic ecosystem.
March 5, 2026
What’s a constellation? What’s an asterism?
Constellations and asterisms are patterns of stars. Some asterisms consist of stars from different constellations, and some are part of 1 constellation.
March 5, 2026
