Sun
Sun news: Low flare action. Big filament eruptions
Sun news July 25, 2026: Flares stayed low, but the sun still put on a show with two big filament eruptions. One CME may reach Earth around July 27-28.
Astronomy Essentials
Tonight
Visible planets and night sky guide for July and August
EarthSky's visible planets and night sky guide. This evening, the moon is close to the famous Teapot asterism, near the galactic center's location on our sky.
Space

Oldest Mars meteorite reveals Mars lost its water early

A new analysis of the the oldest known Mars meteorite, Teghaza 001, reveals evidence for a granite-like crust and the start of the loss of water on early Mars.
Constellations

Vulpecula the Fox lies inside the Summer Triangle

Vulpecula the Fox is a small constellation inside the Summer Triangle. Amateur astronomers go here to spot the Coathanger Cluster and the Dumbbell Nebula.
Astronomy Essentials

Delta Aquariid meteor shower: All you need to know in 2026

The peak of the Delta Aquariid meteor shower is late July. But the shower rambles along steadily for weeks and intermingles with the famous Perseids.
Space

Have we found the first exomoon … around a brown dwarf?

Have astronomers found the first exomoon? We think of moons as objects that orbit planets. So what do we call this object, which orbits a brown dwarf?
Human World
Space

Should the far side of the moon be reserved for science?

Should the far side of the moon be reserved for science? What we decide now could shape the future of the entire solar system.
Astronomy Essentials
Clusters Nebulae Galaxies

M6 and M7: Open star clusters in the Scorpion’s Tail

M6 and M7 are star clusters near Scorpius’ stinger. Under a dark sky, these loose groups of stars can be a stunning sight.
Space

Our galaxy flipped after a collision, say astronomers

Our galaxy flipped after a collision with a dwarf galaxy 10 billion years ago, changing the Milky Way's evolution, new simulations suggest.
Space

A rocket will hit the moon on August 5: Newest updates here!

A Falcon 9 rocket will hit the moon at 1:35 a.m. CDT on August 5, 2026. Who can see it? And what might you see? Answers here.

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