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Astronomy Picture of the Day: Cherenkov Telescope at Sunset

On October 10, a new telescope reflected the light of the setting Sun.

Astronomy Picture of the Day: Jupiter in Ultraviolet from Hubble

Jupiter looks a bit different in ultraviolet light.

Astronomy Picture of the Day: M16: In and Around the Eagle Nebula

From afar, the whole thing looks like an Eagle. A closer look at the Eagle Nebula, however, shows the bright region is actually a window into the center of a larger dark shell of dust.

Astronomy Picture of the Day: The Sun's Spectrum with its Missing Colors

It is still not known why the Sun's light is missing some colors.

Astronomy Picture of the Day: M1: The Crab Nebula from Hubble

This is the mess that is left when a star explodes. The Crab Nebula, the result of a supernova seen in 1054 AD, is filled with mysterious filaments.

Astronomy Picture of the Day: NGC 3628: Sideways Spiral Galaxy

What do spiral galaxies look like sideways? Featured is a sharp telescopic view of a magnificent edge-on spiral galaxy NGC 3628, a puffy galactic disk divided by dark dust lanes.

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Astronomy Picture of the Day: Glowing Elements in the Soul Nebula

Stars are forming in the Soul of the Queen of Aethopia.

Astronomy Picture of the Day: The Pencil Nebula in Red and Blue

This shock wave plows through interstellar space at over 500,000 kilometers per hour.

Astronomy Picture of the Day: Red Planet, Red Moon, and Mars

Mars is also known as The Red Planet, often seen with a reddish tinge in dark night skies.

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