Jupiter is the fifth planet from our Sun and is, by far, the largest planet in the solar system – more than twice as massive as all the other planets combined. Jupiter's stripes and swirls are actually cold, windy clouds of ammonia and water, floating in an atmosphere of hydrogen and helium. With an average temperature of minus 234 degrees Fahrenheit (minus 145 degrees Celsius), Jupiter is frigid even in its warmest weather. Unlike Earth, whose temperature varies as one moves closer to or farther from the equator, Jupiter's temperature depends more on However, on Jupiter, you would need some extra strength to make a similar jump that you made on Earth. Jupiter is 300 times heavier than Earth, which makes its gravitational force extremely strong. Due to this your jump on Jupiter, made with similar force you applied on Earth, shrinks to 0.17 metres.height above the surface. It is believed that the Spanish named the area Jobe after the native residents (the Jobe [HO-bay] Indians). By the way, this is where Hobe Sound got its name. The British had a tendency to Anglicize most of the words they found and changed Jove (the Roman name for Zeus) to their version called Jupiter. While a spacecraft would have nowhere to land on Jupiter, it wouldn't be able to fly through unscathed either. The extreme pressures and temperatures deep inside the planet crush, melt, and vaporize spacecraft trying to fly into the planet.