Extremely

 

Extremely wide field


Astronomy Picture of the Day: Extraordinary Solar Halos

Welcome to the December Solstice, the first day of winter in planet Earth's northern hemisphere and summer in the south.

Astronomy Picture of the Day: Airglow Borealis

The best known asterism in northern skies hangs over the Canadian Rockies in this mountain and night skyscape taken last week from Banff National Park.

Astronomy Picture of the Day: Halo of the Cat's Eye

Not a Falcon 9 rocket launch after sunset, the Cat's Eye Nebula (NGC 6543) is one of the best known planetary nebulae in the sky.

Astronomy Picture of the Day: Cosmic Collision Forges Galactic Ring

How could a galaxy become shaped like a ring?

Astronomy Picture of the Day: From the Galactic Plane through Antares

Behold one of the most photogenic regions of the night sky, captured impressively.

Astronomy Picture of the Day: Coronal Rain on the Sun

Does it rain on the Sun? Yes, although what falls is not water but extremely hot plasma.

Astronomy Picture of the Day: Milky Way vs Airglow Australis

Captured last week after sunset on a Chilean autumn night, an exceptional airglow floods this allsky view from Las Campanas Observatory.

Astronomy Picture of the Day: Total Solar Eclipse Corona in HDF

How great was the Great American Eclipse? The featured HDR image shows it to be perhaps greater than we knew.

Astronomy Picture of the Day: The Seagull and the Duck

Seen as a seagull and a duck, these nebulae are not the only cosmic clouds to evoke images of flight

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