Thirty-five years ago, the Hubble Space Telescope was launched into orbit. It's been sending back galactic data and images ever since.

Hubble’s three-and-a-half-decade lifetime has allowed astronomers to observe cosmic objects over extended periods to see how they change and evolve over time. In addition to peering at the very edges of the observable universe, Hubble has investigated things like seasonal changes of solar system planets, expanding supernovae, pulsars, and more.