What If is a Webby Award-winning science web series that takes you on a journey through hypothetical worlds and possibilities, some in distant corners of the universe, others right here on Earth." ...

Tonight a total lunar eclipse will sweep the Western Hemisphere as the sun, earth and moon align. Called the 'Blood Moon', ...

For the best chances, spectators should look at the sky as soon as the sun sets. That's when the planets will make a brief appearance. Tokyo started seeing the parade first, on Feb. 22 ...