Comets

Comet Halley is the only comet that can appear twice in a human lifetime. Spectacular meteor showers are visible when Earth passes through the tail twice every year. The Orionids meteor shower in October and the Eta Aquariids in May

Comet Leonard is an unusually bright comet. Track it live*! passing the Earth on December 12, 2021 and then closest to the Sun a few weeks later.

Comet NEOWISE is an unusually bright comet. Track it live*! passing the Sun on July 3, 2020 and then closest to Earth a few weeks later.