As artificial intelligence systems become smarter, one A.I. company is trying to figure out what to do if they become ...

The researchers found strong evidence of a chemical called dimethyl sulfide (DMS) in the planet's atmosphere. On Earth, DMS is produced only by living organisms, so it appears to be a compelling sign ...

With the world set to blow past its temperature targets, efforts are growing to remove greenhouse gases from the atmosphere.

Some airplanes flew with less power than a lawnmower -- literally. These 10 aircraft prove flight doesn't always need brute ...