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Space
The strange case of methane on Mars: Possible new answers
New experiments show that methane on Mars, in Gale crater, may seep out of the ground when hard crusts of perchlorate salt temporarily warm up and weaken.
May 2, 2024
Astronomy Essentials
Tonight
Visible planets and night sky guide for May
Visible planets and night sky guide for May 2024. Watch for the moon, Saturn, Mars and Mercury in the next few mornings. Will you see Mercury? It's hard to see.
Brightest Stars
Sun
Sun news May 2: Bye bye, AR3654
Sun news for May 2, 2024. AR3654, the region that brought us so much action, is on its way out over the western limb. But it's still got excitement in store.
May 2, 2024
Astronomy Essentials
Mercury farthest from the sunrise on May 9
Mercury reaches its greatest elongation - greatest distance from the sunrise - on May 9, 2024. Look east at dawn. It'll brighten for the next few weeks.
May 2, 2024
Space
See the Martian spiders of Inca City in new images
Martian spiders? Inca City? Both geologic features on Mars. The European Space Agency (ESA) just released new images of them. Take a look!
May 2, 2024
Today's Image
Deep-sky photos for April 2024: Editor’s picks
Enjoy this gallery of deep-sky photos for April 2024 from our EarthSky community. And if you have a great photo to share, send it in. We love to see them!
May 1, 2024
Astronomy Essentials
Human World
Happy May Day! Today is an astronomy holiday
Happy May Day! This annual celebration has its roots in astronomy as 1 of 4 cross-quarter days. Dancing around a maypole is a traditional May Day celebration.
May 1, 2024
Astronomy Essentials
2024 Eta Aquariid meteor shower: All you need to know
May's Eta Aquariid meteor shower has a broad peak and is often good over several mornings. Watch on May 5 and 6 in the hours before dawn.
May 1, 2024
Space
Eta Aquariid meteors are richer from the Southern Hemisphere
The Eta Aquariid meteor shower is better in the Southern Hemisphere because sunrise comes later in May, where it's now autumn and they are moving toward winter.
May 1, 2024
Spaceflight
List of SpaceX Starlink launches for May 2024
Get a list of all the SpaceX Starlink launches for May 2024 from both the West and East Coasts. Find out how to watch the livestream here.
May 1, 2024
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