Halley’s Comet
Comet Halley is the only known short-period comet that is regularly visible to the naked eye from Earth. Halley last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061. During its 1986 apparition, Halley’s Comet became the first comet to be observed in detail by spacecraft. It provided the first observational data...
