The Colorado School of Mines has started the world's first Space Resources degree program. Professor Angel Abbud-Madrid conducts an online class from his offices in Golden, Colo.
Dan Boyce for NPR
SpaceX founder and chief executive Elon Musk, left, shakes hands with Japanese billionaire Yusaku Maezawa, right, on Monday, after announcing that he will be the first private passenger on a trip around the moon.
Alberta Aurora Chasers captured STEVE in April in British Columbia, Canada. STEVE is the narrow ribbon of white-purple hues overhead, and the vibrant green light on the right is an aurora located further north.