This Week in Space

iewed from the Solar Dynamics Observatory, this image shows the sun's northern hemisphere in mid-eruption. The different colors are caused by different gas temperatures.

The week started off with a series of lunar eruptions that sent tons of plasma headed toward the Earth. The result: A spectacular light show across the northern hemisphere. Also, there were new pictures of the Martian surface as well as rare 3D images of what it looks like inside a supernova after a massive explosion. It ended as Doug Wheelock and Tracy Caldwell Dyson ventured outside of the International Space Station to replace a failed ammonia pump module.