About 320,000 results
Open links in new tab
  1. Halley's Comet - Wikipedia

    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 …

  2. Halley’s Comet | Astronomy, Facts & History | Britannica

    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 Edmond …

  3. 1P/Halley - NASA Science

    Nov 3, 2024 · 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 …

  4. A Brief History of Halley’s Comet

    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 …

  5. When Was Halley’s Comet Last Seen and Will It Ever Return?

    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.

  6. Why Halley's Comet Is The Ultimate Christmas Comet And How It ...

    6 days ago · Halley’s comet is the quintessential comet for humanity, both for its regularity, as Foster explained, but also for its impact in art; that's another Christmas connection.

  7. Comet Halley | Halley’s Comet Next Visit | When Will Halley’s ...

    Jun 17, 2024 · Halley's Comet returns repeatedly to the Earth's sky, easily visible to the naked eye. It fascinates astronomers and casual observers and takes its place in the list of great …

  8. Halley-type comet's water holds clues to life on Earth

    Aug 13, 2025 · Halley-type comets are a class of comet with intermediate orbital periods (between 20 to 200 years), and visit the inner solar system only rarely. The study's findings are …

  9. Halley's Comet - Where it is and what it is - The Planets Today

    Halley's comet is probably the most well known of all the comets. It approaches the sun every 75-76 years and and its visits may have been recorded as early as 467 BC.

  10. Edmond Halley - Wikipedia

    He was the second Astronomer Royal in Britain, succeeding John Flamsteed in 1720. From an observatory he constructed on Saint Helena in 1676–77, Halley catalogued the southern …