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Also one of the facts about planets is that Mars had a thick atmosphere in the past. It is believed to have water in the past ...

Even so, there are parts of the distant Solar System that we know about, such as the Kuiper Belt. It's all good and well knowing facts about space, but how do you get there? Find out here.

Artwork: The interstellar visitor was detected in our Solar System last year The first known comet to visit us from another star system has an unusual make-up, according to new research.

12P/Pons-Brooks orbits the sun every 71 years and is currently on its latest visit to the inner solar system. Its highly elliptical orbit will take it closest to the sun on April 21, with its ...