Friday, 20 August 2010

Goodnight Moon

The moon is shrinking. According to astronomers looking at data from a NASA orbiter, it has lost about 200 metres of its diameter. It's all wrinkly. This isn't unusual - like planets, the moon had a hot core when it was formed and as the core cools, the surface contracts. So if the moon is still contracting, it might still have a bit of heat left in its middle. Maybe there's a dragon or something in there. I hope so.

The moon is very popular. With werewolves, lunatics, astronomers and everyday people like Craig. It was 'born' around 4.527 billion years ago, when something very big and heavy smashed into the newly formed Earth. The big lump knocked off became our moon, so it's not made of cheese, but of the same stuff Earth is made of. Rock and dust and all that. Don't be sad that's it's getting smaller. It'll be a long time before it disappears. By the way - ASTRONOMERS = MOONSTARERS.

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