Giotto and Vega 1 & 2 missions in 1986 .
Vega
Halley's Comet is currently a little beyond the orbit of Neptune.
Difficult to know. The comet which later came to bear Edmund Halley's name has probably been visible throughout human history. But not until Halley did most people accept that all those different comets were all different visits of the SAME comet
Vega 1 and Vega 2 were the last successful Russian space missions beyond Earth's orbit. These two space probes visited Venus and Halley's Comet in the mid-1980s.
There is Halley's comet, and a meteorite crater called Hoba Iron Meteorite. Does that help?
=The reindeer who's name is also the name of a kitchen cleanser is COMET=
from the greek word comet, meaning "to comet"
Baileys Comet
uav
Comet Comet
hailey comet
there's comet halley, comet hale-bop, comet borrelly, and Comet wild 2... that's all i can think now.