After traveling for nine years, we finally reached Pluto this year — and we were rewarded with what is now an iconic photo. But that wasn't the only space milestone we reached.

Astronauts living in space, like Scott Kelly and Kjell Lindgren, gave us breathtaking views of our planet. Not to mention that the Hubble Space Telescope, which has given us the most jaw-droppingly beautiful images of our universe, also turned 25 this year.

Take a look at some of best images of our solar system and beyond.