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Astronomy Picture of the Day: Pillars of the Eagle Nebula in Infrared

Newborn stars are forming in the Eagle Nebula. Gravitationally contracting in pillars of dense gas and dust, the intense radiation of these newly-formed bright stars is causing surrounding material to boil away.

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: Little Planet Soyuz

Engines blazing, a large rocket bids farewell to this little planet. Of course, the little planet is really planet Earth and the large rocket is a Soyuz-FG rocket.

Astronomy Picture of the Day: Six Planets from Yosemite

The five naked-eye planets, Mercury, Venus, Mars, Jupiter and Saturn, have been seen since ancient times to wander the night skies of planet Earth.

Astronomy Picture of the Day: Star Size Comparison 2

How big is our Sun compared to other stars? In dramatic and popular videos featured on YouTube, the relative sizes of planets, stars, and even the universe are shown from smallest to largest.

Astronomy Picture of the Day: The Cat's Eye Nebula from Hubble

To some, it may look like a cat's eye. The alluring Cat's Eye nebula, however, lies three thousand light-years from Earth across interstellar space.

Astronomy Picture of the Day: Countryside Mars and Milky Way

Mars shines brightly now in planet Earth's sky.

Astronomy Picture of the Day: The Clash of NGC 3256

Marked by an unusually bright central region, swirling dust lanes, and far flung tidal tails, peculiar NGC 3256 is the aftermath of a truly cosmic collision.

Astronomy Picture of the Day: Jupiter Season, Hawaiian Sky

Volcanic activity on the Big Island of Hawaii has increased since this Hawaiian night skyscape was recorded earlier this year.

Astronomy Picture of the Day: NGC 6744 Close Up

Beautiful spiral galaxy NGC 6744 is nearly 175,000 light-years across, larger than our own Milky Way.

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