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  1. During its 1986 visit to the inner Solar System, Halley's Comet became the first comet to be observed in detail by spacecraft, providing the first observational data on the structure of a comet nucleus and the mechanism of coma and tail formation.

  2. Jan 13, 2022 · The history of Halley's comet. The first known observation of Halley's Comet, or Comet Halley, took place in 239 B.C., according to the European Space Agency. Chinese astronomers recorded...

  3. May 3, 2024 · 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 Halley published the first catalog of the orbits of 24 comets.

  4. Dec 8, 2023 · Beginning on Friday, Dec. 8 we can finally state with absolute certainty that Halley's Comet is coming. This most famous of all comets travels around the sun in a flattened elliptical orbit...

  5. science.nasa.gov › solar-system › comets1P/Halley - NASA Science

    Until the time of English astronomer Edmond Halley (1656-1742), comets were believed to make only one pass through the solar system. But in 1705, Halley used Isaac Newton's theories of gravitation and planetary motions to compute the orbits of several comets.

  6. Oct 14, 2021 · Halley’s Comet continued its periodic return to the inner solar system in 1835, 1910, and 1986. In its highly elongated orbit, it approaches to within 55 million miles of the Sun at perihelion, within the orbit of Venus, and departs to reach aphelion or greatest distance from Sun past the orbit of Neptune.

  7. www.nasa.gov › solar-system › cometsHalley's Comet - NASA

    Learn about the history, orbit, and features of Halley's Comet, the most famous comet in the solar system, from NASA's official website.