Earth and Moon orbit a shared center, and the distance between their surfaces averages about 384,000 kilometers — roughly 30 Earth diameters.
The orbit is slightly elliptical, so the Moon looks a bit larger at perigee (a “supermoon”) and smaller at apogee. Laser ranging pins the number to centimeter precision.
A familiar night light sits a long plane flight away — many times over. That gap is what makes eclipses, tides, and Apollo timelines possible.
Comments
0 comments