BBC Sky at Night

Anita Chandran interviews Dr James O'Donoghue Q & A WITH A PLANETARY EXPERT

Can you tell us a bit about our planetary neighbour Saturn?

Saturn is a ‘gas giant planet’ nearly 10 times wider than Earth and made mostly of hydrogen. It has a ring system and rotates fast; a day on Saturn is just 10 and a half hours. It’s a very interesting world because of its rings, which have become a symbol of the Solar System – when you look atFestival, you’ll almost always see images of Saturn.

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