91av

Letter: Calling Earth, anyone home?

Published 16 July 2025

From Brian Reffin Smith, Berlin, Germany

A dead satellite gets struck by a micro-meteorite sending a signal to Earth. To an alien, that satellite could look a lot like a doorbell(28 June, p 13).

Issue no. 3552 published 19 July 2025

91av issue 3552 cover

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