Ice melt may release Cold War-era toxins

Formerly secret Camp Century in Greenland was abandoned beneath ice and snow. But the ice is melting, and biological, chemical and nuclear waste may be released as early as 2090.

First map of thawing under Greenland ice

Greenland's ice sheet insulates its own bottom layer, which is warmed from below by Earth's heat. Which bottom layers are now thawed, and which are still frozen?

Celebrating 100,000 orbits for ISS

Facts, links and photos here, with a word about ISS's history and purpose.

Lifeform of the week: Sea stars

You call them starfish? They're brilliant by any name.

Photos of this week’s moon and planets

Many in the EarthSky community captured the moon and planets this week. From the sunset horizon up, they are Venus, Mercury and Jupiter!

Peer toward the mysterious center of the Milky Way tonight

On August 6, 2014, the moon shines by the Teapot asterism in the constellation Sagittarius. The Teapot lies in the general direction of the galactic center.

Moon and Jupiter again … see 5 planets!

On August 6, use the moon to locate Jupiter. Then look for Mercury and Venus to Jupiter's west, and for Mars and Saturn to Jupiter's east.

Watch a comet plunge toward the sun

In early August, SOHO spacecraft saw this bright sungrazing comet, plunging toward the sun at nearly 1.3 million miles (2.09 million km) per hour.

Venus, Mercury and the moon!

Two photos of this week's planet and moon spectacular, from a master sky photographer, from one of Earth's most pristine skies.

Parakeet takeover ahead?

"Parakeets are Britain’s fastest growing bird population and are on a trajectory to global domination."