Nasa's probe Juno is going to reach Jupiter today, and that's awesome because we know so little about our solar-system giant. Here's what we do know: Named for the king of the Roman gods ...

The fifth planet from the sun, Jupiter is what watercolor dreams are made of. Vibrant bands of clouds ripple around its thick atmosphere, making up a world so large that more than 1,300 Earths ...

The newly discovered jet stream travels at about 320 miles (515 kilometers) per hour—about twice as fast as a Category 5 hurricane on Earth. That’s important because Jupiter’s turbulent ...