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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: 55 Nights with Saturn

For 55 consecutive nights Mediterranean skies were at least partly clear this summer, from the 1st of July to the 24th of August 2018.

Astronomy Picture of the Day: The Light, the Dark, and the Dusty

This colorful skyscape spans about two full moons across nebula rich starfields along the plane of our Milky Way Galaxy in the royal northern constellation Cepheus.

Astronomy Picture of the Day: Rover 1A Hops on Asteroid Ryugu

Two small robots have begun hopping around the surface of asteroid Ryugu.

Astronomy Picture of the Day: Equinox: Analemma over the Callanish Stones

Does the Sun return to the same spot on the sky every day at the same time? No.

Astronomy Picture of the Day: Stars and Dust in Corona Australis

Cosmic dust clouds and young, energetic stars inhabit this telescopic vista, less than 500 light-years away toward the northern boundary of Corona Australis, the Southern Crown.

Astronomy Picture of the Day: Ice Halos at Yellowknife

You've probably seen a circle around the Sun before. More common than rainbows, ice halos, like a 22 degree circular halo for example, can be easy to spot, especially if you can shade your eyes from direct sunlight.

Astronomy Picture of the Day: Curiosity Vista from Vera Rubin Ridge

If you could stand on Mars -- what might you see? If you were NASA's Curiosity rover, just last month you would have seen the view from Vera Rubin Ridge, an intriguing rock-strewn perch on the side of Mount Sharp.

Astronomy Picture of the Day: Aurora around Saturn's North Pole

Are Saturn's auroras like Earth's? To help answer this question, the Hubble Space Telescope and the Cassini spacecraft monitored Saturn's North Pole simultaneously during Cassini's final orbits around the gas giant in September 2017.

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