The forces of rotation caused red hot masses of stones to be torn away from the Earth and to be thrown into the ether, and this is the origin of the stars.

— Anaxagoras 428 BC

APOD

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Astronomy Picture of the Day
Updated: 2 weeks 3 days ago

Night of the Perseids

Thu, 09/30/2021 - 12:00am

Have you ever experienced a meteor shower?


Categories: Astronomy, NASA

Unwrapped: Five Decade Old Lunar Selfie

Thu, 09/30/2021 - 12:00am

Here is one of the most famous pictures from the Moon -- but digitally reversed.


Categories: Astronomy, NASA

The Red Square Nebula

Thu, 09/30/2021 - 12:00am

How did a round star create this square nebula?


Categories: Astronomy, NASA

The Bubble and the Star Cluster

Thu, 09/30/2021 - 12:00am

To the eye,


Categories: Astronomy, NASA

Perseid Outburst at Westmeath Lookout

Thu, 09/30/2021 - 12:00am

Perseid Outburst at Westmeath Lookout


Categories: Astronomy, NASA

Harvest Moon Trail

Thu, 09/30/2021 - 12:00am

Famed in festival, story, and song the best known


Categories: Astronomy, NASA

Gigantic Jet Lightning from Puerto Rico

Thu, 09/30/2021 - 12:00am

Have you ever seen a gigantic jet?


Categories: Astronomy, NASA

Equinox on a Spinning Earth

Wed, 09/29/2021 - 12:00am

When does the line between night and day become vertical?


Categories: Astronomy, NASA

Sun Spot Hill

Mon, 09/27/2021 - 8:00pm

Is this giant orange ball about to roll down that tree-lined hill?


Categories: Astronomy, NASA

Lynds Dark Nebula

Sun, 09/26/2021 - 4:00pm

Stars are forming in Lynds Dark Nebula


Categories: Astronomy, NASA

Rings and Seasons of Saturn

Sat, 09/25/2021 - 12:00pm

On Saturn, the rings tell you the season.


Categories: Astronomy, NASA

Rubin's Galaxy

Fri, 09/24/2021 - 8:00am

Rubin's Galaxy


Categories: Astronomy, NASA

Video: Flash on Jupiter

Thu, 09/23/2021 - 4:00am

There has been a flash on Jupiter.


Categories: Astronomy, NASA

North America and the Pelican

Wed, 09/22/2021 - 12:00am

North America and the Pelican


Categories: Astronomy, NASA

Cyclone Paths on Planet Earth

Wed, 09/22/2021 - 12:00am

Where on Earth do cyclones go?


Categories: Astronomy, NASA

Mars Panorama 360 from Curiosity

Mon, 09/20/2021 - 8:00pm

Which way up


Categories: Astronomy, NASA

Night Sky Reflected

Sun, 09/19/2021 - 4:00pm

What's that in the mirror?


Categories: Astronomy, NASA

A Spiral Aurora over Iceland

Sat, 09/18/2021 - 12:00pm

What's happened to the sky?


Categories: Astronomy, NASA

Saturn at Night

Fri, 09/17/2021 - 12:00pm

Saturn at Night


Categories: Astronomy, NASA

Rosetta's Comet in View

Thu, 09/16/2021 - 8:00am

Rosetta's Comet in View


Categories: Astronomy, NASA