Callisto key facts Age: Callisto is about 4.5 billion years old, about the same age as Jupiter. It is the most heavily cratered object in the solar system, according to NASA. There is hardly any ...

Jupiter is by far the largest planet in our ... Dean Regas is an astronomer and author of six books including "1000 Facts About Space" and "How to Teach Grown-Ups About Pluto" and host of the ...

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 ...

Also read: NASA Chandra X-ray Observatory and James Webb Space Telescope capture stunning images of Orion Nebula, NGC 3627 and more - HD 36384 b: A super-Jupiter orbiting an M giant star nearly 40 ...

It is the sixth planet from the sun and the second-largest planet in the solar system, after Jupiter. Saturn's beautiful rings are made of icy bits of rock and dust. Scientists think the rings ...