Space probes·NASA

Juno

ActiveLaunched in 2011·Jupiter polar orbit

A Jupiter polar orbiter probing its interior, its colossal magnetic field and its polar auroras.

Main objectives

Did you know?

Magnetic field measured 14× stronger than what Earth experiences.

Timeline

Aug 05, 2011

Launch

Atlas V from Cape Canaveral.

Jul 05, 2016

Jupiter orbit insertion

Jun 07, 2021

Ganymede flyby

First close flyby since Galileo (2000).

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JunoCam

Wide-angle camera (citizen science).

MWR

Microwave radiometer.

JIRAM

Infrared imager.

Mass3,625 kg

Solar panels60 m² (record at 5 AU)

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Iconic imageMajor
Active volcanism on Io
Close flyby at 1,500 km: plumes and lava flows observed by JunoCam and JIRAM.
Dec 30, 2023 ↗
MeasurementMajor
Salty ocean beneath Europa’s crust
Gravimetric and magnetic data strengthen the hypothesis of a global ocean beneath the ice.
Sep 29, 2022
ObservationMajor
Permanent polar cyclones on Jupiter
Discovery of a stable pattern of 8 cyclones around the north pole and 5 around the south.
Mar 07, 2018
ObservationNotable
Ganymede flyby
First close flyby since Galileo (2000).
Jun 07, 2021