Jupiter Overview Updated January 6, 2021


"The gas giant"

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Three 'Jupiter' stories

August 2020 - January 2021

Jupiter, named after the king of the ancient Roman gods, is the largest planet in our solar system. Often referred to as “the gas giant” due to its makeup of mostly hydrogen and helium gases. The most notable feature of Jupiter is its “Great Red Spot,” which is an enormous storm that is twice as wide as Earth, where wind speeds can reach over 400 mph.

The planet has been visited by many unmanned spacecraft, including Ulysses, Galileo, Cassini, and many more.

Traditional life here has been deemed unlikely due to the harsh conditions and makeup of the planet.

Important Stats

  • 5th planet from the Sun (475 million)
  • 79 moons
  • 86,881 miles in diameter
  • 3 degrees axis tilt
  • 4,333 day long years
  • 250% of Earth’s gravity (24.79 m/s²)
  • Average temperature of -238 degrees F
  • Atmospheric makeup of mostly hydrogen and helium gas


  • Io
  • Europa
  • Callisto
  • 76 other moons…

Surface Photos

Jupiter Stories January 6

NASA’s Lucy mission is primed to be the first space mission to study the Trojan asteroids around Jupiter. Today the mission moved one step closer to its launch following the successful integration of the L’TES instrument into the spacecraft.

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Jupiter Stories December 9, 2020

This year’s winter solstice will bring something special in regards to the planets in our solar system. Saturn and Jupiter will be appearing closer in the night sky than they have since July 16, 1623.

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Jupiter Stories August 3, 2020

Lucy spacecraft will soon be featured in a cartoon series about the Trojan Asteroids mission. Credits: NASA's Goddard Space Flight Center
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NASA is planning to embark a spacecraft on a 12-year journey starting next year on a first-of-its-kind mission called Lucy. The Lucy spacecraft will flyby and study distant asteroids in our Solar System as part of a mission to learn more about the origins of our planet and species.

The space agency shared a status update on the upcoming Lucy mission today as the mission team passed a major milestone that puts the launch on schedule for a launch in October 2021.

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