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Polaris, the North Star, has spots on its surface
Observations of Polaris, the North Star, show large bright and dark spots on its surface. It's the first glimpse of the surface of a Cepheid variable.
August 25, 2024
Air pollution increases thunderstorm danger
Researchers studying thunderstorms in urban areas found that air pollution leads to more cloud-to-ground lightning strikes.
August 23, 2024
Super-marine heatwaves describe record high sea temps
Super-marine heatwaves - extremely strong periods of hot weather - played a role in 2023's record high sea temperatures according to research published in July.
August 23, 2024
Serpens the Snake, the only constellation cut in 2
Serpens the Snake is the only constellation cut in 2. It consists of Serpens Cauda and Serpens Caput, the tail and the head.
August 23, 2024
Dinosaur-killing asteroid came from beyond Jupiter
An international team of scientists has determined that Chicxulub dinosaur-killing asteroid was carbonaceous and originated from the deep outer solar system.
August 22, 2024
Moon and Saturn close together this week. See the images!
Did you miss the moon and Saturn close together on August 20, 2024? Here's a gallery and video full of images of the event. Enjoy!
August 22, 2024
Female sharks gather under sea to … sleep?
Using a remotely operated vehicle, scientists recently observed thousands of Port Jackson sharks, all female, sleeping on the seafloor off south Australia.
August 22, 2024
Don’t miss it! Best Super Blue Moon images of 2024
What a night it was this Monday! Did you see the Super Blue Moon? If you didn't, here's a gallery full of stunning images from our community of photographers.
August 20, 2024
Oceans of water on Mars deep underground?
Where did Mars' water go? A new study using data from NASA's InSight mission provides evidence for oceans of water on Mars, deep below the surface in the crust.
August 20, 2024
LIVE on Monday: Super Blue Moon
Join EarthSky team members LIVE beginning at 12:15 p.m. (17:15 UTC) on Monday, August 19, 2024 ... to talk about Monday night's Super Blue Moon.
August 19, 2024
