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Space
Centaur jets? Webb detects jets of gas on distant icy body
Webb detected jets of carbon monoxide and carbon dioxide gas on a distant icy centaur. This may shed light on the formation and evolution of the solar system.
October 6, 2024
Earth
Dolphins make smile-like expressions during play
Bottlenose dolphins use an open-mouth facial expression when playing with each other, resembling what humans might perceive as a “smile.”
October 6, 2024
Space
1st planet orbiting a sunlike star discovered 29 years ago
On October 6, 1995, astronomers announced the discovery of the first planet orbiting around a distant sunlike star. This planet is known as 51 Pegasi b.
October 6, 2024
Sun
Sun news October 6: Giant plasma stream waiting for auroras
Sun news update for October 6, 2024. Happy Sun Day! Activity is moderate, the sun sprayed out solar plasma as we await possible auroras.
October 6, 2024
Space
Hera mission: Keeping Earth safe from an asteroid collision
The Hera mission is scheduled to launch on October 7, 2024. Will it launch? Hera will explore Dimorphos, which DART hit as a test of planetary defense in 2022.
October 6, 2024
Tonight
What’s that bright star by the moon? It’s Venus!
What's that bright star by the moon? It's not a star at all, it's Venus! Venus is the brightest point of light in our night sky. Learn more here.
October 5, 2024
Tonight
Visible planets and night sky guide for October
Visible planets and night sky guide for October 2024. This evening, see bright Venus near the waxing crescent moon close to the western horizon after sunset.
October 5, 2024
Today's Image
Deep-sky photos for September 2024: Editor’s picks
Enjoy this gallery of deep-sky photos for September 2024 from our EarthSky community. If you have a great photo to share, send it in. We love to see them!
October 5, 2024
Space
Dwarf planet Ceres might have been a muddy ocean world
Ceres - a dwarf planet in the main asteroid belt - may once have been a muddy ocean world. That makes it a great target for future spacecraft missions.
October 4, 2024
Clusters Nebulae Galaxies
Double Cluster in Perseus on October evenings
The Double Cluster in Perseus is a breathtaking pair of open star clusters, easy to see in October. Here's how to find it in your sky.
October 4, 2024
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