Earth
Sun
Sun news: Activity jumps to high after surprise M flare
Sun news April 1, 2025. Sunspot AR4046 produced an M5.6 (moderate) flare, while AR4048 is growing in size and complexity and remains the region to watch.
April 1, 2025
Earth
Human World
The April birthstone is the diamond, the hardest known gem
Happy birthday, April babies! The April birthstone, the diamond, is the hardest of the known gems. And it's a popular choice for engagement rings.
April 1, 2025
Space
Massive collision created Mercury, new theory suggests
Researchers might have solved the mystery of Mercury's origin. They say Mercury formed from a huge collision between 2 similarly-sized rocky bodies.
March 31, 2025
Earth
This amazing hummingbird chick looks like a caterpillar
Hummingbirds might be small, but they can have strong defense mechanisms. One hummingbird species is born with feathers resembling dangerous caterpillar hair.
March 31, 2025
Today's Image
Partial solar eclipse pics that you’ll love. See them here!
See some beautiful partial solar eclipse pics from March 29, 2025, thanks to our global EarthSky community! Did you take a pic? Submit it to us!
March 31, 2025
Space
Asteroid 2024 YR4 won’t hit in 2032, but it will be back
Asteroids like 2024 YR4 - which is set to pass very close to Earth in 2032 - will keep coming back into our vicinity, thanks to a strange orbital resonance.
March 30, 2025
Earth
New study says residential trees can affect human health
A study examined residential trees in Switzerland and found a significantly lower mortality risk in people who live in neighborhoods with large tree canopies.
March 30, 2025
Human World
Widespread severe weather expected in east-central US today
Millions of Americans are under the threat for severe weather Sunday and Monday. Damaging wind gusts, large hail and significant tornadoes are all possible.
March 30, 2025
Favorite Star Patterns
The Big and Little Dipper: How to find them in the spring
How to find the Big and Little Dipper in the nighttime sky. From the Northern Hemisphere the Big Dipper is high in the sky on spring evenings.
March 30, 2025
Astronomy Essentials
Sun
A deep partial solar eclipse on March 29. Watch here.
Watch the deep partial solar eclipse on Saturday, March 29, 2025, at EarthSky. Or join our expert eclipse watchers for more.
March 29, 2025
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