Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

The nuclei of most comets are about 1-2 miles across. The nucleus of Halley's comet, which is considered to be fairly large, was approximately 10 miles across in its largest dimension. Hale-Bopp's ...

Halley's Comet is one of the most famous celestial ... Whenever the famous comet returns to the inner solar system its nucleus sprays ice and rock into space. NASA says: "This debris stream ...

TIM PEAKE:Hi, I'm Tim Peake. I'm an astronaut based here at the European Space Agency, in Germany. And from December 2015 to June 2016, I spent six months orbiting Earth on the International Space ...

As there wasn’t enough excitement about comets this month, here’s a chance to see the impact of Halley's Comet, the most famous clump of ice, rock and dust in the solar system. Last seen in ...