Astronomers say this Super Earth could have oceans of water

At just 40 light years from Earth, Gliese 1214b is one of the nearest Super-Earths we've discovered in our search for planets beyond the solar system. Now, a team of Japanese researchers say it could well be an "ocean world," abundant in good old H2O. » 9/05/13 1:08pm 9/05/13 1:08pm

An enchanting new photo of the Andromeda Galaxy

A new instrument on Japan's Subaru telescope has enabled astronomers to photograph Andromeda, the Milky Way's neighboring galaxy, in a whole new light. » 7/31/13 6:40am 7/31/13 6:40am

The First Ever Star With Spiral Arms

Chances are you've seen your fair share of interesting looking stars here on io9, but you've never seen one quite like this. According to NASA, it's the first star we've ever seen with spiral-arm-like structures. » 11/02/11 11:20am 11/02/11 11:20am