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Astronomy Picture of the Day: Mars in the Loop

This composite of images spaced some 5 to 9 days apart, from late April (bottom right) through November 5 (top left), traces the retrograde motion of ruddy-colored Mars through planet Earth's night sky.

M33 Galaxy

a close up view of brilliant galaxy

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.

supergiant Antares and Rho ophiuchi


نفرات برتر مسابقه عکاسی از طولانی ترین خسوف قرن مشخص شدند.

برندگان مسابقه طولانی ترین خسوف قرن مشخص شدند.

Astronomy Picture of the Day: Total Solar Eclipse Shadow from a Balloon

Where were you during the Great American Eclipse of 2017?

Emerald Foreast


Astronomy Picture of the Day: Moon, Mars, and Milky Way

Just two weeks ago, dark skies over the desert in northern Iran held this alluring celestial vista.

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.

ماه آزادی

Composed of different exposures The camera did not move during photography

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