Tonight

Visible planets and night sky guide for September and October

Visible planets and night sky guide. Tonight in the west after sunset, look for the crescent moon pointing toward Mars. Don't miss the Comet C/2025 R2 video!

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Visible planets and night sky guide for September and October

Visible planets and night sky guide for September and October

Meteor shower guide 2025: Next up is the Draconids

The Big Dipper: Why can’t you see it now?

Draconid meteor shower 2025: All you need to know

Orionid meteor shower 2025: All you need to know

Mercury is farthest from the sunset on October 29

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Astronomy Essentials

Visible planets and night sky guide for September and October

Neptune at opposition today, September 23, 2025

How many stars can you see on a moonless night?

2025 September equinox: All you need to know

Brightest Stars

Fomalhaut is the Loneliest Star … but not in 2025

Thuban was the North Star for the ancient Egyptians

61 Cygni – a double star – is nicknamed Flying Star

Eltanin and Rastaban, the Dragon’s eyes

Constellations

Cassiopeia the Queen ascends in September and October

Cepheus the King: The constellation that looks like a house

Sagitta the Arrow lies inside the Summer Triangle

Aquila the Eagle soars along the Milky Way

Clusters Nebulae Galaxies

The Andromeda galaxy: All you need to know

See the Trifid nebula aka Messier 20 tonight

The Great Rift is a dark swath in the Milky Way

The Omega nebula is a star-forming region

Favorite Star Patterns

Great Square of Pegasus gallops into the autumn sky

Teapot of Sagittarius points to Milky Way center

The Northern Cross: Find the backbone of the Milky Way

Summer Triangle: Star pattern of the season