Look up in Michigan's night sky later this month to catch a rare seven-planet parade. The planets will appear to line up in the sky as they orbit the sun, known as a planetary alignment or planet ...

But what about beyond Mars? Would it be possible one day for astronauts to walk on other planets? As the next planet out from Mars, could a Jupiter walk be a part of our future? Well, no ...

Unlike Earth and other rocky planets, Jupiter lacks a solid surface. It’s composed entirely of gas and liquid, making it impossible to land on or walk across. Largest Planet in the Solar System ...