Auroras

Forgotten Data From 1996 Sheds New Light On Jupiter’s Mysterious Moon Ganymede

Forgotten Data From 1996 Sheds New Light On Jupiter’s Mysterious Moon Ganymede

Twenty-two years ago, the Galileo spacecraft made its first flyby of Ganymede, Jupiter’s largest moon. Scientists with NASA have taken a new look at the data collected during that historic encounter, providing tantalising new details about this strange celestial object, its unique magnetic shield, and its unusually bright auroras.

Watch How Auroras Are Created In Ultra-High Definition

Watch How Auroras Are Created In Ultra-High Definition

Video: This beautiful 4K video shows in gorgeous detail how the sun’s powerful plasma eruptions ultimately create auroras, when solar particles beat the earth’s magnetic field and hit its upper atmosphere. The journey is amazing in itself, but then so are the results.