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Posts by
Editors of EarthSky
Beluga Boat cam now live! And well worth watching
Click into these videos to see the Beluga Boat cam, from Manitoba's Churchill River. Belugas live, hunt and migrate in "pods." Hear their vocalizations!
July 27, 2023
How nuclear fusion works to let stars shine
Nuclear fusion powers our sun and is the energy source of the stars in our night sky. Here's how nuclear fusion works to make stars shine.
July 16, 2023
Know how to avoid rip currents! Watch this video
Before going to the ocean this year, you'll want to know how to avoid rip currents. Watch a video here to learn how to save yourself from these deadly currents.
June 8, 2023
What’s a safe distance from a supernova for Earth?
What's a safe distance from a supernova? To survive a supernova, recent data says Earth would have to be at least 160 light-years away from the exploding star.
May 26, 2023
The world’s fastest bird is the Peregrine falcon
When in its hunting dive, the Peregrine falcon is the fastest bird - in fact, the fastest animal - on Earth. Get a bird's-eye view of the flight in this video.
April 30, 2023
Aurora photos, night of April 23-24, 2023
The night of April 23-24, 2023, featured a wonderful auroral display. Aurora photos from our community, and some tweets, here.
April 25, 2023
Hybrid solar eclipse photos: April 20, 2023
Enjoy these April 20, 2023, hybrid solar eclipse photos from the EarthSky community. Do you have a photo? Share it with us!
April 20, 2023
What are brown dwarfs?
Brown dwarfs are more massive than a planet, but less massive than a star. They can be found orbiting stars, or traveling around in the galaxy on their own.
April 20, 2023
Here’s why rainbows have a curved or arcing shape
Rainbows have a curved shape because they're made from light reflected after hitting spherical raindrops. Learn more about rainbows here.
March 29, 2023
Was ‘Oumuamua a comet? Avi Loeb responds to new research
A March 22 study suggests that 'Oumuamua, which passed us in 2017, was a comet from another solar system. Harvard astronomer Avi Loeb strongly disagrees.
March 24, 2023
