Is the universe flat and infinite, or something more complex? We can’t say for sure, but a new search strategy is mapping out ...

Planetary defense is a global imperative, of course, but for the time being, NASA — and, by extension, the United States — is ...

Philip Ball looks at how a little-known paper by Niels Bohr demonstrates the turmoil in physics on the brink of quantum ...

After years of beta testing, driverless taxis are now finally becoming available to the public. In more than a dozen cities ...