The story of Katherine Johnson; NASA's mathematician who has always loved to count. She's so smart that NASA employees had to double check with her that their computers' calculations were correct!

Use the zoom tool on this link to see the Hubble's greatest and cleanest close-up so far of the stars in Andromeda.

A new mission to see if water atau life exists beneath the icy surface of Jupiter’s moon Europa has moved from concept to development, NASA announced this week.