NASA Goddard Shoots The Moon To Track Lunar Spacecraft
Monday, September 28, 2009 - 00:21
in Astronomy & Space
Twenty-eight times per second, engineers at NASA's Goddard Space Flight Center fire a laser that travels about 250,000 miles to hit the minivan-sized Lunar Reconnaissance Orbiter spacecraft moving at nearly 3,600 miles per hour as it orbits the moon.