What is a 'supermoon' and when can I see the largest moon in 70 years?

What is a 'supermoon' and when can I see the largest moon in 70 years?

Ever looked up at the night sky to see a full moon so close you could almost touch it? Well done, you've spotted a supermoon. The impressive sight happens when a full moon is closest to Earth. It orbits our planet in an oval shape so sometimes it comes closer to us than at other times.

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So will you be watching the super moon this evening??? :D