Tag Archive for 'moon illusion'

Big moon rising!

As I was cycling back from the bus stop this evening and glancing up at the full moon (all smudgy-looking, as it was shining through clouds), I was struck by how unusually large it looked in the sky. I’m very familiar with the “moon illusion” – caused by our brains playing tricks on us when the moon is near the horizon and making it look larger than when it’s higher in the sky (see this page for more details) – and wondered if this was just another example of that, but this seemed a bit different.

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