EmbedVideo(3578, 482, 304); The thrill of gazing into a night sky packed with stars, constellations and a stretch of our Milky Way galaxy is primal and timeless -- and it's become increasingly rare. Skyglow from city…

EmbedVideo(3476, 480, 320); At the close of World War II, in Princeton, N.J.'s Institute for Advanced Study, an extension of the Manhattan Project was busy building a bomb that would be a thousand times more powerful than the…

EmbedVideo(3389, 482, 304); On Saturday, if all goes as planned, the privately owned spaceflight company SpaceX will launch its Dragon capsule into low-Earth orbit and three days later dock with the International Space Station. It would…