Time to get out the party poppers! JWST has officially reached its destination, fired its thrusters, and begun its halo orbit around the Sun and Earth's 2nd Lagrange point (L2). What would you say if you had to give a toast welcoming JWST to its new home? The Sun-Earth 2nd Lagrange point — called L2 by its friends — is about 1.5 million km (1 million mi) from Earth in the direction opposite the Sun. Lagrange points are positions relative to two larger bodies (in this case, the Sun and Earth) whe