Time once more for one of my favorite holiday traditions, the 10th annual Hubble Space Telescope Advent Calendar. Every day until Monday, December 25, this page will present one new incredible image of our universe from NASA's Hubble telescope. Be sure to bookmark this calendar and come back every day until the 25th, or follow on Twitter (@TheAtlPhoto), Facebook, or Tumblr for daily updates. I hope you enjoy these amazing and awe-inspiring images and the efforts of the science teams who have brought them to Earth. Again, I want to say how fortunate I feel to have been able to share photo stories with you all year, and how happy I am to put together the 10th edition of this calendar. Wishing you a merry Christmas, happy holidays, and peace on Earth.