"Professor Goddard does not know the relation between action and reaction and the need to have something better than a vacuum against which to react. He seems to lack the basic knowledge ladled out daily in high schools."
--1921 New York Times editorial about Robert Goddard's revolutionary rocket work.

"Correction: It is now definitely established that a rocket can function in a vacuum. The 'Times' regrets the error."
NY Times, July 1969.

— New York Times

APOD

Syndicate content APOD
Astronomy Picture of the Day
URL: https://apod.nasa.gov/
Updated: 3 hours 3 min ago

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3 hours 3 min ago

What is Miranda really like?


Categories: Astronomy, NASA

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3 hours 3 min ago

An unusually active sunspot region is now crossing the Sun.


Categories: Astronomy, NASA

Crescent Enceladus

3 hours 3 min ago

Peering from the shadows, the


Categories: Astronomy, NASA

Supernova Remnant Cassiopeia A

3 hours 3 min ago

Supernova Remnant Cassiopeia A


Categories: Astronomy, NASA

NGC 1275 in the Perseus Cluster

3 hours 3 min ago

NGC 1275 in the Perseus Cluster


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3 hours 3 min ago

Most galaxies don't have any rings -- why does this galaxy have three?


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3 hours 3 min ago

Raise your arms if you see an aurora.


Categories: Astronomy, NASA

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Mon, 02/09/2026 - 12:00pm

Oh what a


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Sun, 02/08/2026 - 8:00am

What part of Orion is this?


Categories: Astronomy, NASA

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Sat, 02/07/2026 - 4:00am


Categories: Astronomy, NASA

Artemis I: Flight Day 13

Fri, 02/06/2026 - 12:00am

Artemis I: Flight Day 13


Categories: Astronomy, NASA

NGC 1333: Stellar Nursery in Perseus

Fri, 02/06/2026 - 12:00am

NGC 1333 is seen in visible light as a


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NGC 2442: Galaxy in Volans

Wed, 02/04/2026 - 8:00pm

NGC 2442: Galaxy in Volans


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Tue, 02/03/2026 - 4:00pm


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Mon, 02/02/2026 - 12:00pm

Rising over a frozen valley in the


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Sun, 02/01/2026 - 8:00am

Can you see nebulas in other galaxies?


Categories: Astronomy, NASA

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Sat, 01/31/2026 - 4:00am

This moon is doomed.


Categories: Astronomy, NASA

Earthset from Orion

Fri, 01/30/2026 - 12:00am

Earthset from Orion


Categories: Astronomy, NASA

Planetary Nebula Abell 7

Fri, 01/30/2026 - 12:00am

Very faint planetary nebula Abell 7 is about 1,800 light-years distant.


Categories: Astronomy, NASA

LDN 1622: Dark Nebula in Orion

Wed, 01/28/2026 - 8:00pm

The silhouette of an intriguing


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