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Astronomy Picture of the Day: Good Morning Leonid

On November 17, just an hour before sunrise, this bright and colorful meteor flashed through clear predawn skies.

Astronomy Picture of the Day: IC 4592: The Blue Horsehead Reflection Nebula

Do you see the horse's head? What you are seeing is not the famous Horsehead nebula toward Orion but rather a fainter nebula that only takes on a familiar form with deeper imaging.

Astronomy Picture of the Day: Meteor, Comet, and Seagull (Nebula)

A meteor, a comet, and a photogenic nebula have all been captured in this single image.

Astronomy Picture of the Day: Orion in Red and Blue

When did Orion become so flashy? This colorful rendition of part of the constellation of Orion comes from red light emitted by hydrogen and sulfur (SII), and blue-green light emitted by oxygen (OIII).

Astronomy Picture of the Day: The Falcon 9 Nebula

Not the Hubble Space Telescope's latest view of a distant planetary nebula, this illuminated cloud of gas and dust dazzled even casual U.S. west coast skygazers on October 7.

Astronomy Picture of the Day: Comet 21P Between Rosette and Cone Nebulas

Small bits of this greenish-gray comet are expected to streak across Earth's atmosphere tonight.

Astronomy Picture of the Day: The Last Days of Venus as the Evening Star

That's not a young crescent Moon poised above the hills along the western horizon at sunset.

Astronomy Picture of the Day: Sea and Sky Glows over the Oregon Coast

Every step caused the sand to light up blue. That glow was bioluminescence -- a blue radiance that also lights the surf in this surreal scene captured last month at Meyer's Creek Beach in Oregon, USA.

Astronomy Picture of the Day: Active Prominences on a Quiet Sun

Why is the Sun so quiet? As the Sun enters into a period of time known as a Solar Minimum, it is, as expected, showing fewer sunspots and active regions than usual.

Astronomy Picture of the Day: From the Galactic Plane through Antares

Behold one of the most photogenic regions of the night sky, captured impressively.

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