Despite NASA's budget woes, 2010 was a year full of new discoveries and successful missions.
The Hubble telescope celebrated a 20-year milestone, the space shuttle program launched three of its final scheduled missions, astronauts aboard the International Space Station shared their experiences in real-time using unprecedented forms of Internet access, and more. Even in places where people can't go, NASA's cameras were clicking away.
Thanks to the images NASA released this year, we learned of gorgeous land formations on Mars, got up close and personal with speeding asteroids, flew by moons orbiting our neighboring planets and examined alien galaxies in stunning detail.
Check out our slideshow of the best NASA photos from 2010 and cast your vote for the most stunning ones. Seen any other NASA images from the past year that you feel should have been included? Let us know in the comments, email your suggestions to firstname.lastname@example.org or upload photo on your own with the "Add a slide" tool. Then, check out our slideshow of astronaut's most incredible Twitter photos sent from space.