Astronomy Picture of the Day: Charon: Moon of Pluto

A darkened and mysterious north polar region known to some as Mordor Macula caps this premier high-resolution view.

Astronomy Picture of the Day: Shadow Rise on the Inside Passage

At sunset look east not west. As Earth's dark shadow rises from the eastern horizon, faint and subtle colors will appear opposite the setting Sun.

Astronomy Picture of the Day: Dawn's Early Light, Rocket's Red Glare

If you saw the dawn's early light from Cape Canaveral Air Force Station last Friday, June 29, then you could have seen this rocket's red glare.

Astronomy Picture of the Day: An Airplane in Front of the Moon

If you look closely at the Moon, you will see a large airplane in front of it.

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: Fresh Tiger Stripes on Saturn's Enceladus

Do underground oceans vent through the tiger stripes on Saturn's moon Enceladus?

Astronomy Picture of the Day: The East 96th Street Moon

A very full Moon rose over Manhattan's Upper Eastside on June 28, known to some as the Strawberry Moon.

Astronomy Picture of the Day: Messier 24: Sagittarius Star Cloud

Unlike most entries in Charles Messier's famous catalog of deep sky objects, M24 is not a bright galaxy, star cluster, or nebula.

Astronomy Picture of the Day: Sigma Octantis and Friends

South pole star Sigma Octantis (of the constellation Octans) is on the left of this starry expanse spanning over 40 degrees across far southern skies.

Astronomy Picture of the Day: Highlights of the Summer Sky

What can you see in the night sky this summer?

Top