Take a picture of a bird and identify it. This free new iPhone app is an electronic field guide featuring 500 of the most common North American bird species.
A new illustration of the seafloor, created by two of the world’s leading ocean floor mapping experts, details underwater terrain where the missing Malaysia Airlines flight might be located.
This star cluster - called NGC 3590 - isn't just pretty. It's also helping astronomers understand the Milky Way galaxy in which our sun and Earth reside.
Some sunlike stars are "Earth-eaters." As they form, they ingest large amounts of the rocky material from which planets like Earth, Mars and Venus are made.
The EarthSky team has a blast bringing you daily updates on your cosmos and world. We love your photos and welcome your news tips. Earth, Space, Sun, Human, Tonight. Since 1994.