Photo of the Day: How NASA Builds a Space Laser
An engineer checks ICESat-2's box structure, shortly after its arrival in a NASA clean room in May. Over the next two years, engineers and technicians will attach electronics, optics, lasers, a telescope and more to the box, testing its function at each step. (NASA's Goddard Space Flight Center/Kate Ramsayer)
For more information, visit www.nasa.gov.