Oxford University Press's
Academic Insights for the Thinking World

  • Author: Jose M. Madiedo

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A record-breaking lunar impact

On 11 September 2013, an unusually long and bright impact flash was observed on the Moon. Its peak luminosity was equivalent to a stellar magnitude of around 2.9. What happened? A meteorite with a mass of around 400 kg hit the lunar surface at a speed of over 61,000 kilometres per hour.

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