"An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey through hypothetical worlds and possibilities, some in distant corners of the ...

On March 6, 1986, the Soviet Union's Vega 1 spacecraft flew by Halley's Comet. Vega 1 was the first of five missions to fly ...

It sounds spectacular. The comet - Halley’s Comet, to be precise - has occurred before with no grave consequences. But, a scientist reports suspicion that this comet may or may not wipe out all ...

EDMUND HALLEY was a very great man. He was not only the first to predict correctly the return of a comet, that which is now known by his name, but also—before Newton had announced his results to ...

Halley's Comet is one of the most famous celestial objects, and even those who have no interest in astronomy have most likely heard of it. The space rock marked the first time astronomers ...