It last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061. Officially designated 1P/Halley, it is also commonly called Comet Halley, or sometimes simply Halley.

Jan 21, 2026 · Halley’s Comet, the first comet whose return was predicted and, almost three centuries later, the first to be imaged up close by interplanetary spacecraft. In 1705 English astronomer …

Halley is often called the most famous comet because it marked the first time astronomers understood comets could be repeat visitors to our night skies. Astronomers have now linked the comet's …

Explore the rich history of Halley's Comet, from ancient observations to modern scientific understanding. Learn about its most famous appearances throughout history.

Sep 17, 2024 · Halley’s Comet, officially designated 1P/Halley, is a short-period comet (less than 200-year orbit around the Sun) that is regularly visible from Earth about every 76 years.

3 days ago · Halley’s Comet is a short-period comet originating from the outer solar system that returns to the inner solar system approximately every 76 years. Composed of ice, dust, and rocky material, it …

3 days ago · Halley’s Comet made its closest pass by Earth at 39 million miles in its first return to the solar system since 1910. (The comet’s next appearance will be in 2061).

Jan 13, 2022 · Halley's Comet is arguably the most famous comet in history. As a "periodic" comet, it returns to Earth's vicinity about every 75 years, making it possible for a person to see it twice in their...

Feb 3, 2026 · While Edmond Halley is credited as the first to determine that the comet that bears his name reappears cyclically, new research indicates that a medieval monk may have first noted the …

Nov 8, 2016 · Halley argued that the comet orbited the sun and whizzed by the Earth roughly once every 76 years, and he predicted that it would reappear sometime in late 1758 or early 1759.