Could life exist beyond Earth? This documentary investigates the solar system’s most promising candidates for alien life, from the frozen oceans of Europa to the red deserts of Mars.

Earth gazed into the cosmos, wondering if she would ever get a new planetary neighbor. To her astonishment, one day... it happened. This video explores the breathtaking and chaotic consequences of a ...

CAPE CANAVERAL, Fla. (AP) — The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another star. NASA and the European Space Agency released ...

A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system. The Hubble Telescope and its Wide Field Camera 3 got an incredible view of the comet ...

The suspected comet, discovered on 1 July, is only the third known interstellar object to pass through the Solar System – ...