Occupation: Astronomer and Mathematician

Year born: Around 400 BCE

Research Areas: Jupiter’s movements, Star maps, Sunspots

"[Jupiter] ...was very large and bright. Apparently, there was a small reddish star appended to its side. "

Source: Treatise on Astrology of the Kaiyuan Era, xxiii

Early Life

Occupation: Astronomer, Mathematician, Engineer

Year born: 1564

Research Areas: speed, velocity, motion, astronomy, tides

Juno is a NASA spacecraft orbiting the planet Jupiter. It was launched in August 2011 and finally reached Jupiter in July 2016. It has been orbiting the planet ever since. Juno is the second mission to orbit Jupiter; the Galileo spacecraft orbited the planet from 1995 to 2003.

The gas giant planet, Jupiter has more than 90 moons. So far, fewer than 60 of the moons have been named, the rest are waiting for official names.

Io is one of Jupiter's large moons. Io is the closest large moon to Jupiter. It is a bit larger than the Earth's Moon.