Juno mission of NASA

The Juno mission of NASA (National Aeronautics and Space Administration) recently completed its 53rd close flyby of Jupiter and captured photograph of Jupiter with its volcanic Moon Io.

About the Moon Io:

• Io is the most volcanically active region in the solar system which releases sulphurous gases.
• Io is slightly larger than the Earth’s Moon.
• Io is tidally locked to Jupiter, meaning that one side of the Moon always faces the planet.
• It has lakes of molten silicon lava on its surface.

About the Juno mission:

• Launched in 2011, NASA’s Juno spacecraft aimed to probe the Jupiter’s dense clouds and discover about the origin and evolution of Jupiter, solar system, and giant planets of the cosmos. 
• Juno is solar–powered and carries instruments to study Jupiter’s auroras, magnetosphere, atmosphere, gravitational field, and its moons- Ganymede, Europa, Callisto, and Io.

Discoveries by the Juno mission of NASA:

• The Juno mission has provided the closest look of Io since 2007.
• Juno will continue to gather images and science data during its close flybys.
• Juno discovered large cyclones near the planet’s poles and determined that Jupiter accreted from large planetesimals instead of smaller objects.

Ref: Source