Jupiter Icy Moons Explorer

**Jupiter Icy Moons Explorer (JUICE)** is a space probe made by the European Space Agency that will explore Jupiter's major moons, mostly just Ganymede, Europa, and Callisto. It is powered by solar panels, like NASA's Juno spacecraft.

The spacecraft launched on 14 April 2023. It will reach Jupiter's orbit in July 2031 after four gravity assists and eight years of travel.

It will fly near the moons before going into orbit around Ganymede.

## Instruments onboard JUICE

JANUS- An optical camera system

MAJIS- Moon and Jupiter imaging Spectrometer

GALA- Ganymede laser Altimeter

J-Mag- A magnetometer for JUICE

RPWI- Radio & Plasma Wave Investigation

UVS- UV imaging Spectrograph

SWI- Sub-millimeter Wave Instrument

RIME- Radar for Icy Moons Exploration

PEP- Particle Environment Package

3GM- Gravity & Geophysics of Jupiter and Galilean Moons

## History

Juice builds on the previously proposed Europa Jupiter System Mission (EJSM-Laplace), a planned collaborative mission between ESA and NASA that would have carried out an in-depth study of the Jovian system and its icy moons. It is now foreseen that the Juice and NASA Europa Clipper spacecraft will be exploring the Jovian system simultaneously.

## Milestones JUICE will achieve

- It will be the first spacecraft to orbit a moon in the outer solar system(Ganymede)
- Juice’s flyby of the Earth-Moon system, known as a Lunar-Earth gravity assist (LEGA), is a world first: by performing this maneuver — a gravity assist flyby of the Moon followed just 1.5 days later by one of Earth—Juice will be able to save a significant amount of fuel.

## Spacecraft structure

Three-axis stabilized with 10 solar panels and a 2.5-metre-long High Gain Antenna, with a dry mass of approximately 2400 kg and a wet mass (including fuel) of approximately 6000 kg. Each solar panel measures about 2.5 m x 3.5 m; with five on each side of the spacecraft deployed as two distinctive cross-shaped arrays, these total an area of about 85 square meters.

## Journey

Juice will spend approximately eight years cruising to Jupiter, during which it will complete fly-bys of Venus, Earth and the Earth-Moon system. It will reach Jupiter in July 2031; six months before entering orbit around Jupiter, Juice will begin its nominal science phase. The spacecraft will go on to spend many months orbiting Jupiter, completing fly-bys of Europa, Ganymede and Callisto, and finally conducting an orbital tour of Ganymede.

## Details

|colspan="2"|Details about the JUICE mission|
| --- | --- |
|Life time|4yrs.|
|Launch|Kourou, French guinia|
|Rocket|Ariane 5|
|Launch date|April 13, 2023|
|Launch Time|12:15UTC (8:15am EDT) (5:35pm IST)|

## Infobox (spaceflight/ip)

- **type**: flyby
- **object**: Moon
- **arrival date**: 19 August 2024


## Infobox (spaceflight/ip)

- **type**: flyby
- **object**: Earth
- **arrival date**: 20 August 2024


## Infobox (spaceflight/ip)

- **type**: flyby
- **object**: Venus
- **arrival date**: 31 August 2025


## Infobox (spaceflight/ip)

- **type**: flyby
- **object**: Earth
- **arrival date**: 29 September 2026


## Infobox (spaceflight/ip)

- **type**: flyby
- **object**: Earth
- **arrival date**: 18 January 2029


## Infobox (spaceflight/ip)

- **type**: orbiter
- **object**: Jupiter
- **arrival date**: July 2031 (planned)
- **departure date**: December 2034 (planned)


## Infobox (spaceflight/ip)

- **type**: orbiter
- **object**: Ganymede (moon), Ganymede
- **arrival date**: December 2034 (planned)


## Infobox (spaceflight/instruments)

- **acronym1**: GALA
- **name1**: GAnymede Laser Altimeter
- **acronym2**: JANUS
- **name2**: Jovis, Amorum ac Natorum Undique Scrutator
- **acronym3**: J-MAG
- **name3**: JUICE-MAGnetometer
- **acronym4**: MAJIS
- **name4**: Moons And Jupiter Imaging Spectrometer
- **acronym5**: PEP
- **name5**: Particle Environment Package
- **acronym7**: RIME
- **name7**: Radar for Icy Moons Exploration
- **acronym8**: RPWI
- **name8**: Radio and Plasma Wave Investigation
- **acronym9**: SWI
- **name9**: Sub-millimeter Wave Instrument
- **acronym10**: UVS
- **name10**: UV imaging Spectrograph
- **acronym11**: 3GM
- **name11**: Gravity and Geophysics of Jupiter and Galilean Moons


## Infobox (spaceflight)

- **name**: Jupiter Icy Moons Explorer
- **names list**: Juice, JUICE
- **image**: Juice launch kit cover close-up.png
- **image caption**: Artist's impression of the Juice spacecraft
- **mission type**: Planetary science
- **operator**: European Space Agency, ESA
- **mission duration**: Cruise phase: 8 years
Science phase: 3.5 years
Elapsed:
- **manufacturer**: Airbus Defence and Space
- **dimensions**: 16.8 x 27.1 x 13.7 meters
- **power**: 850 watts from a solar panel ~
- **launch date**: 14 April 2023 12:14:36 UTC
- **launch rocket**: Ariane 5 ECA
- **launch site**: Guiana Space Centre, Centre Spatial Guyanais, ELA-3
- **launch contractor**: Arianespace
- **insignia**: Logo de la misión JUICE.png
- **insignia caption**: Juice mission insignia
- **insignia alt**: Juice mission logo
- **insignia size**: 200px
- **programme**: **Cosmic Vision**
- **previous mission**: Euclid (spacecraft), Euclid
- **next mission**: SMILE (spacecraft), SMILE