Texte d'origine - Anglais - Gravity in our Galaxy (Optional) ...

Gravity in our Galaxy (Optional)
Gravity obviously extends much further than the Moon. Newton himself showed the inverse-square law also explained Kepler's laws--for instance, the 3rd law, by which the motion of planets slows down, the further they are from the Sun.
react to electromagnetic or nuclear forces, and scientists are still seeking more information about it.