Greg Walters

A human-caused mass extinction is underway, threatening the foundations of civilization, researchers argue in a study of the planet's declining biodiversity.

Lawmakers may compel the U.S. military to establish a dedicated fighting force for space — against the wishes of some senior Air Force leaders.

Elite military units are specializing in mock space warfare, as Russia and China develop anti-satellite weaponry.

Remote-controlled robots will journey to the bottom of the ocean in search of copper, nickel, cobalt, gold, and platinum as global demand for minerals surges.

A international team of researchers showed that artificial intelligence can make a killing on the stock market, and some real-world hedge funds are already trying it.

Swiss researchers looked at bee and wasp wings to design a drone that's stiff during flight, but flexible when it hits something.