[Answer] In what year will Halley's comet be visible again in the night sky?

Step 1 : Introduction to the question "In what year will Halley's comet be visible again in the night sky?"

...Halley's comet is probably a name most recognize. It is classified as a "periodic" comet, meaning it swings by Earth's vicinity on a regular schedule. It can be seen in the night sky every 75 years, give or take a month or two. It last lit the sky in 1986, making its projected return sometime in 2061. Historical records showed the comet making an appearance in 1531, 1607 and 1682. English astronomer Edmond Halley figured out that these appearances were the same comet and correctly predicted the comet's return in 1758. Source: Space.com

[Ans] When will Halley's Comet be visible on Earth again?

Step 1 : Introduction to the question "When will Halley's Comet be visible on Earth again?"

...Halley is the only known short-period cometthat is regularly visible to the naked eye from Earth, and the only naked-eye cometthat 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.