Pourquoi la Lune s’éloigne de la Terre et ce que ça change pour notre planète

Hinzugefügt: 2026-05-25

[00:00:00]You won't believe it, but the Moon is moving away from Earth by about 3.8 cm per year and we measure it to the nearest millimeter by reflecting laser beams off reflectors placed by the Apollo missions and the unocode. A retreat that imperceptibly lengthens the length of the Earth's day and that of the fate of total solar eclipses which, as the apparent diameter of the Moon decreases, will first become rarer and then disappear when our satellite appears too small to completely obscure the solar disk.

[00:00:33]Yeah.