February sunset over the Po

Today's image, sunset over Italy's Po River near Turin, comes from EarthSky Facebook friend Marco Mereu.

February 2013 nor’easter recap

The February 2013 nor'easter brought feet of snow throughout the U.S. Northeast and killed at least 15 people.

Intelligent civilizations rarer than one in a million

NASA’s Kepler mission has identified 2,740 planets orbiting other stars, but do any of them harbor intelligent life?

Astronomers ask public to help name Pluto’s new moons

The discoverers of Pluto's two tiniest moons are inviting the public to help select names for the new moons.

International Space Station over North Carolina February 9

EarthSky Facebook friend Lee Capps Photography caught this cool image of the ISS cruising above Wheeler Bridge Road (I-40/I-85) in Whitsett, North Carolina.

Large tornado hits Hattiesburg, Mississippi

Amazing pictures and video from Hattiesburg, Mississippi as a large tornado strikes the city on February 10, 2013.

Video: Timelapse of night sky over southern oceans

In this 2011 video by Alex Cherney, watch the Milky Way unfurl itself over the Southern Ocean coast of Australia.

Mercury and Mars barely visible in twilight this past week

Mercury is innermost in our solar system. Mars is one step outward from Earth. These two worlds came together low in our west twilight sky this past week.

How the world’s saltiest pond gets its salt

Findings based on data gathered about the sustained salinity of Antarctica’s Don Juan Pond suggest that such ponds could be possible on Mars.

Morning moon over Los Angeles

Today's image: 'Los Angeles 2-8-13' by EarthSky Facebook friend Peter Rodney Breaux. It's gorgeous.