NASA just launched the new Wide-Field Infrared Survey Explorer, or WISE, this morning. It'll be used to detect light- and heat-emitting objects that the Hubble might miss. Such as spaceships, I'll bet!
The WISE will be in orbit for the next nine months, snapping a photo every 11 seconds to map the entire universe in infrared. Eventually it'll cover the entire sky 1.5 times over.
It'll be looking for any objects that have a potential of hitting Earth as well as distant objects such as brown dwarfs and far-away galaxies shrouded in dust. Also, alien spacecraft. I mean, duh. [CNN, image via]