Lagrange point
NASA has inserted satellites into two Lagrange points of the Sun-Earth system. The L1 point (between the Earth and the sun) is used for satellites in a halo orbit to watch the sun, looking for solar flares. The L2 point (beyond the Earth) is used for space telescopes such as the James Webb Space Telescope launched on 25 December 2021.  It is a million miles (about 1.5 million kilometers) from Earth.