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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

Comet Meets Moon and Morning Star


Comet Meets Moon and Morning Star

Daytime Moon Meets Morning Star


Daytime Moon Meets Morning Star

Icelandic Legends and Aurora


Icelandic Legends and Aurora

Arp 87


Arp 87: Merging Galaxies from Hubble

Nebulae in Auriga


Nebulae in Auriga

Cygnus


Cygnus: Bubble and Crescent

Enceladus


Enceladus: Ringside Water World

Dark Sand Cascades on Mars


Dark Sand Cascades on Mars

Gravity s Grin


Gravity's Grin

Aurora over Clouds


Aurora over Clouds

A 212-Hour Exposure of Orion


A 212-Hour Exposure of Orion

Phobos


Phobos: Doomed Moon of Mars

Recycling NGC 5291


Recycling NGC 5291

A Blazing Fireball between the Orion Nebula and Rigel


A Blazing Fireball between the Orion Nebula and Rigel

Leonids Over Monument Valley


Leonids Over Monument Valley

The Tadpoles of IC 410


The Tadpoles of IC 410

An Unexpected Rocket Plume over San Francisco


An Unexpected Rocket Plume over San Francisco

AE Aurigae and the Flaming Star Nebula


AE Aurigae and the Flaming Star Nebula

A Quadruple Sky Over Great Salt Lake


A Quadruple Sky Over Great Salt Lake

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