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Streak and Plume from SpaceX Crew-2 Launch


IC 1805: The Heart Nebula

What energizes the Heart Nebula?

Pluto in True Color

What color is Pluto, really? It took some effort to figure out.

The Spider Nebula in Infrared

Will the spider ever catch the fly?

Human as Spaceship

You are a spaceship soaring through the universe.

The Local Void in the Nearby Universe

What does our region of the Universe look like?

4000 Exoplanets

Over 4000 planets are now known to exist outside our Solar System.

A View Toward M106

Big, bright, beautiful spiral, Messier 106 dominates this cosmic vista.

Astronomy Picture of the Day: Ancients of Sea and Sky

They may look like round rocks, but they're alive.

Astronomy Picture of the Day: Red Cloudbow over Delaware

What kind of rainbow is this? In this case, no rain was involved -- what is pictured is actually a red cloudbow.

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