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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.
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
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 the DART mission hit as a test of planetary defense in 2022.
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
Space
Puffy exoplanet WASP-107 b has an asymmetric atmosphere
New observations by the Webb space telescope show that the giant exoplanet WASP-107 b has an asymmetric atmosphere between its western and eastern hemispheres.
October 3, 2024
Earth
Sea robins use their legs to taste the seafloor
Northern sea robins have 3 leg-like fin extensions, in front of each pectoral fin, with sensory organs that can taste the seafloor to detect buried prey.
October 3, 2024
Astronomy Essentials
Flashing star in autumn? Here are 3 candidates
Some October night, check out 3 of the flashiest stars in the night sky ... at least at this time of year. And here's why you see these as a flashing star.
October 3, 2024
Earth
GOES-19 first light images show stunning view of Earth
The GOES-19 satellite achieved 1st light and is now in beta mode. This Earth-observing satellite is already sending back stunning views of our home planet.
October 2, 2024
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