NASA’s James Webb telescope enters test phase (PHOTOS)
It's optimized to work in Infrared spectrum so it can see things that Hubble cannot
SpaceX launches its first recycled rocket in historic leap
Boosters — the most expensive part of the rocket, according to Musk — typically are discarded following liftoff
NASA snaps pics of the world’s largest solar farm from space
The images were taken by NASA's Operational Land Imager on Landsat 8