Discovering a machine that could somehow produce thrust without releasing propellant would be a game-changer for human space travel. There’s just one problem—such a device would defy the laws of ...

A generational ship would need entire ecosystems, living quarters, and technology to sustain life for centuries in space. Lack of oil aboard Venezuela tanker seized by US raises eyebrows Trump ...

Add Yahoo as a preferred source to see more of our stories on Google. A new building system made from cardboard, soil, and water slashes carbon emissions and reimagines how sustainable construction ...

SEOUL—The new South Korean owner of the historic Philly Shipyard has a problem: too much demand.