Astronomy Picture of the Day: Asperitas Clouds Over New Zealand

What kind of clouds are these? Although their cause is presently unknown, such unusual atmospheric structures, as menacing as they might seem, do not appear to be harbingers of meteorological doom.

North America and Pelican

تصویر بای کالر از محدوده زیبای آمریکای شمالی



Astronomy Picture of the Day: A Sun Pillar over Norway

Have you ever seen a sun pillar? When the air is cold and the Sun is rising or setting, falling ice crystals can reflect sunlight and create an unusual column of light.

Gamma Cygni .IC1318 Butterfly Nebula



Astronomy Picture of the Day: Gaia's Milky Way

This grand allsky view of our Milky Way and nearby galaxies is not a photograph.

Astronomy Picture of the Day: Dual Particle Beams in Herbig-Haro 24

This might look like a double-bladed lightsaber, but these two cosmic jets actually beam outward from a newborn star in a galaxy near you

Astronomy Picture of the Day: Comet PanSTARRS is near the Edge

The comet PanSTARRS also known as the blue comet (C/2016 R2) really is near the lower left edge of this stunning, wide field view recorded on January 13

Ancient Realm of Stars