What causes these spooky ice formations in the desert?

The Atacama Pathfinder Experiment telescope, or APEX, is on Earth, but surrounded by ice spikes that make the landscape look decidedly alien. These "sculptures" are natural formations known as penitentes. And they form where it's very cold and very dry. » 1/03/14 4:40pm 1/03/14 4:40pm

New Map Of Our Galactic Disc Reveals Where Future Stars Will Be Born

Members of a massive galaxy-mapping project started a few years ago have just unveiled the first of several atlases they will produce of our Milky Way's galactic disc. These images of "cold dust" in the galaxy show where stars will ignite. » 7/01/09 1:42pm 7/01/09 1:42pm