SpaceX Tests Fins On Reusable Rocket Flight | Video

The steerable fins provide control during fly back. They can be seen deploying about a minute and 15 seconds into the flight. This test flight of the Falcon 9 Reusable (F9R) occurred on June 17th, 2014.

SpaceX Rocket Test Sends Cows on the Moo-ove (Video )

credit : SpaceX