It's time for my favorite holiday tradition: the 2014 Hubble Space Telescope Advent Calendar. Every day until Thursday, December this page will present an amazing new image of our universe from NASA's Hubble telescope.
Source: Flickr user Hubble Heritage Ever find yourself miles away from big-city lights on clear night? Look up, and the amount of stars can unsettle you. Who knew they were always there blanketing the sky? You just start to grasp the scale of our
The large Whirlpool Galaxy (left) is known for its sharply defined spiral arms. Their prominence could be the result of the Whirlpool’s gravitational tug-of-war with its smaller companion galaxy (right).