How the solar eclipse will help NASA

WASHINGTON (NEXSTAR) — It's not just an historic sky show for Americans in the path of the total eclipse of the sun."It's a rare sight we haven't seen in seven years," NASA Administrator Bill Nelson said.On April 8, millions of Americans will put on funny glasses and look to the sky to see a total eclipse of the sun."As the moon passes in front, in between the Sun and the Earth," Nelson said.While those of us in the path of the eclipse will marvel at the show, as day turns into night, NASA