On December 21st SpaceX made history by bringing the first stage of a rocket launch safely back to Earth, as part of a mission that put 11 satellites in various orbits. What makes this important is the fact that being able to reuse the first rocket stage reduces the cost of going to space to 1% of its current price tag. Check out the article about reusability on the SpaceX web site for their take on the topic. The Falcon 9 rocket was launched from Cape Canaveral and the first stage landed back there as well. There is an excellent article about the mission at MIT Technology Review if you would like a few more details. Besides covering the launch and landing the video also covers the satellite launches.
