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Last Updated: Tuesday January 04 2011 17:44 GMT

Prof Brian Cox talks stargazing

Hayley chats to Prof Brian Cox

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Professor Brian Cox (former popstar!) is an expert on all things physics, and he's given Hayley a lesson on how to stargaze.

Overnight and this morning millions of people tried to see the first lunar eclipse of 2011.

The best experience was in Sweden because the the Moon covered the biggest area of the Sun there.

Remember never look directly at a solar or lunar eclipse because the bright lights can damage your eyes.