Morning Overview on MSN

All Earth’s water on the Sun? The terrifying chain reaction explained

Imagining every drop of Earth’s water hurled into the Sun sounds like a last-ditch cosmic fire extinguisher, but the physics ...
PBS

Chain Reaction Machine

How many steps does it take to power a fan? How many steps does it take to power a fan? A whole lot, when you're using a Rube Goldberg machine! Watch Ethan and Kieran build one of these complicated ...