Milky Way over Green Lake, in Horsham, Australia

The glow of a town and more-distant glow of the zodiacal light shine above an Australia lake. Even farther away is the arc of the Milky Way.

Autumn in Sweden

A fall day in Sweden. Photo by Jörgen Norrland Andersson.

Young moon returns to the evening sky

Moon was rising and setting with the sun in the past few days. Now it's far enough from the sun's glare to be visible in the evening sky, shortly after sunset.

Mars MAVEN spacecraft’s first observations

MAVEN is the first spacecraft dedicated to exploring the tenuous upper atmosphere of Mars. It entered orbit around Mars on September 21, 2014.

Fires in the Amazon

Astronaut photo of rainforest being cleared for agriculture in Brazil.

Sun kissed

A beautiful photo to honor the sun at the equinox.

Comet C/2012 K1 (PANSTARRS) on September 19

This beautiful comet may be visible with the eye alone around mid-October, but it'll remain much easier to detect using binoculars or a telescope.

Fogbow over Massachusetts

Because of the small size of water droplets in fog, a fogbow might have only very weak colors, or no color at all. Colorless fogbows are sometimes called white rainbows.

Polar mesospheric clouds over the Ukraine

Astronauts aboard the International Space Station, flying at 350 kilometers (220 miles) up, are ideally placed to observe elusive polar mesospheric clouds.

Hurricane Odile

Hurricane Odile tied Olivia (1967) as the strongest hurricane to make landfall in Baja California in the satellite era.