This image is why everyone's so excited about a NASA mission to Europa

NASA wants to visit Jupiter's moon Europa. Why's that exciting? In a word: Water. As this visualization shows, the icy moon may look tiny next to our own planet, but it's got 2- to 3-times as much H2O as we have here on Earth. That "little" moon is packing quite the store of water — and with it, scientists think, a… » 3/08/14 8:15am 3/08/14 8:15am

This spectacular image is the deepest view of the Universe ever captured

Astronomers working with the Hubble Space Telescope have just released the most detailed view of the early Universe ever captured. It's called the eXtreme Deep Field, or XDF for short. The image combines over ten years' worth of photographs by Hubble. It required 2-million seconds of exposure time to produce, and… » 9/26/12 8:00am 9/26/12 8:00am