Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.

NASA, which has 1.3 million followers on the live-streaming video service, has previously broadcast events on its Twitch channel.

Scientists discovered a previously hidden ecosystem - lagoons in Argentina's Puna de Atacama harbors microbial communities, known as stromatolites, that could be good examples of the earlier form of ...