Q: Given a passage and a question, find the answer to the question based on the passage. The answer should consist of only one word that lies in the span of only one of the sentences in the passage.
Paragraph: Halley 's Comet or Comet Halley , officially designated 1P / Halley , is a short - period comet visible from Earth every 74 -- 79 years . Halley is the only known short - period comet that is regularly visible to the naked eye from Earth , and the only naked - eye comet that might appear twice in a human lifetime . Halley last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061 .
Question: when is halley's comet coming around again

A:
mid-2061