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Juno
Juno Mission to Jupiter

Goals: NASA's Juno Mission will study how Jupiter, the largest planet in our solar system, formed and became the dynamic world we see today. The solar-powered spacecraft will map the gravity field, magnetic field and atmospheric structure of Jupiter from a unique polar orbit. Juno's observations will lead to a better understanding of the formation of our solar system and planetary systems discovered around other stars.

Accomplishments: This mission is en route to its primary science target.


Key Dates
5 Aug 2011:  Launch
Oct 2013:  Earth Flyby Gravity Assist
Jul 2016:  Jupiter Arrival
Status: In Flight
Fast Facts
Juno Facts Juno will, for the first time, see below Jupiter's dense cover of clouds. This is why the mission was named after the Roman goddess (right), who was Jupiter's wife, and who could also see through clouds.

The spacecraft will orbit Jupiter 33 times, skimming to within 3,100 miles (5,000 kilometers) above the planet's cloud tops every 11 days, for approximately one year.

The orbiter will use massive solar panels to power its suite of science instruments. Juno will be the first solar-powered spacecraft designed to operate at such a great distance from the sun.

Juno will be the second spacecraft to orbit Jupiter. A total of eight spacecraft have studied Jupiter.

The Juno mission is the second spacecraft designed under NASA's New Frontiers Program. The first was the Pluto New Horizons mission, launched in January 2006 and scheduled to reach Pluto's moon Charon in 2015.
Science & Technology Features
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Last Updated: 7 Oct 2014