Why spacecraft park at Lagrange points

Lagrange points are cosmic parking spots where gravity and motion balance to keep satellites in place.

L1 and L2 are unstable, requiring satellites to use fuel for regular course corrections to stay put.

L4 and L5 are stable, acting like bowls that naturally trap dust and asteroids over time.

L2 is a prime location for deep space telescopes because it keeps the Sun and Earth behind them.

Counterintuitively, stable points like L4 and L5 are stable because of the Coriolis force, not just gravity.