Saturn

TECHNICAL DEFINITION

Saturn is the sixth planet from the Sun, a gas giant primarily composed of hydrogen and helium, renowned for its extensive and complex system of icy rings, numerous moons (including Titan), and a rapid rotation that causes it to be noticeably oblate.

BACKGROUND

The National Aeronautics and Space Administration is an independent agency of the U.S. federal government responsible for the United States' civil space program and for research in aeronautics and space. Headquartered in Washington, D.C., NASA operates ten field centers across the U.S. and is organized into three mission directorates: Human Spaceflight, Research and Technology, and Science. Established in 1958 amid the Space Race, NASA succeeded the National Advisory Committee for Aeronautics (NACA) to give the U.S. space program a distinct civilian orientation focused on peaceful applications. Since then, it has led most American spaceflight programs, including Project Mercury, Project Gemini, the Apollo program, Skylab, the Space Shuttle, the International Space Station (ISS) and the ongoing multi-national Artemis program.

SYNONYMS & ALIASES

• Ringed planet
• gas giant
• Kronos (Greek mythology)

USAGE NOTE

Missions like Cassini-Huygens have provided unprecedented data on Saturn, its rings, and its moons, particularly Titan.

DEVELOPERS

Organizations developing technology related to Saturn.

• NASA (National Aeronautics and Space Administration)

  The primary US space agency that led the Cassini-Huygens mission, which orbited Saturn for 13 years, and is now developing the Dragonfly mission to explore Saturn's moon, Titan.

• Johns Hopkins University Applied Physics Laboratory (APL)

  APL is leading the development and management of NASA's Dragonfly rotorcraft mission, an octocopter designed to fly on Saturn's largest moon, Titan, to study its environment and prebiotic chemistry.

• European Space Agency (ESA)

  A key partner in the Cassini-Huygens mission, ESA developed and operated the Huygens probe, which made the first successful landing on a world in the outer Solar System when it touched down on Titan.

• NASA's Jet Propulsion Laboratory (JPL)

  Managed by Caltech for NASA, JPL managed and operated the Cassini spacecraft during its mission at Saturn. It continues to be a primary center for analyzing mission data and designing future robotic missions to the outer planets.

• Italian Space Agency (ASI)

  A crucial partner in the Cassini-Huygens mission, contributing the spacecraft's large high-gain antenna for communication and several key scientific instruments used to study Saturn's magnetosphere and rings.

• Southwest Research Institute (SwRI)

  SwRI develops space science instrumentation and conducts planetary research. Its scientists served as principal investigators for multiple instruments on the Cassini mission, including the Ion and Neutral Mass Spectrometer and the Ultraviolet Imaging Spectrograph.

• University of Arizona, Lunar and Planetary Laboratory (LPL)

  A premier academic institution for planetary science, LPL led the Imaging Science Subsystem team for the Cassini mission, which was responsible for capturing hundreds of thousands of images of the Saturn system.