Sun-Earth L2 Lagrange point

Surpassing 4 full years / beginning 5th in space, NASA (STSci) / ESA / CSA infrared astronomy telescope designed to observe the earliest galaxies, study star and planet formation, and analyze the atmospheres of exoplanets, launched on this day via Ariane 5 ECA rocket in 2021.

ESA spacecraft surpasses 12 full years in space today, begins year 13, in extended mission phase working to map more than 1 billion stars.