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In order to estimate the number of extraterrestrial civilizations capable of communicating within our Galaxy –  the Milky Way – the astronomers use a mathematical formula called Drake equation e. The name comes from Frank Drake, the US astronomer and astrophysicist who first issued it. In the game we are proposing – realized with Scratch – you can estimate the number of intelligent civilizations in our Galaxy by using a simplified version of this formula. The original formula contains seven terms, whereas here we only have three terms: A: number ofLEGGI TUTTO