Juno
Extended MissionNASA's Jupiter orbiter studying the planet's interior structure, atmosphere, and magnetosphere from unique polar orbits. Extended through September 2025 to study Jupiter's rings and inner moons. Completed historic close flybys of Ganymede, Europa, and Io.
Type
Jupiter Orbiter
Launch Date
08/05/2011
Landing Date
07/04/2016
Location
Jupiter Polar Orbit
Live Position Data
Mission Achievements
- ✓First spacecraft in polar orbit around Jupiter
- ✓Completed close flyby of Ganymede (June 2021) - closest since Galileo
- ✓Completed close flyby of Europa (September 2022) at 352 km
- ✓Completed close flybys of Io (December 2023, February 2024)
- ✓Discovered Jupiter has a "fuzzy" core, not solid
- ✓Mapped Jupiter's gravitational and magnetic fields in detail
- ✓Found massive cyclones at Jupiter's poles
- ✓Completed 60+ orbits of Jupiter
- ✓Extended mission through September 2025
Mission Objectives
- ▸Determine Jupiter's interior structure and composition
- ▸Map gravitational and magnetic fields
- ▸Study atmospheric dynamics and composition
- ▸Investigate polar magnetosphere
- ▸Search for evidence of water in atmosphere
- ▸Study Jupiter's rings and inner moons (extended mission)
Scientific Instruments
- •Gravity Science: Uses radio signals to map Jupiter's gravity field
- •JunoCam: Color imager providing spectacular images of Jupiter
- •JIRAM: Jovian Infrared Auroral Mapper for atmospheric studies
- •MWR: Microwave Radiometer measuring atmospheric water and ammonia
- •WAVES: Radio/Plasma Wave Investigation detecting radio and plasma waves
- •MAG: Magnetometer mapping Jupiter's magnetic field
- •JADE & JEDI: Particle detectors studying Jupiter's magnetosphere