Bigelow Expandable Activity Module headed out toward the International Space Station aboard the Dragon cargo module attached to the historic Falcon 9 rocket whose first stage made history, successfully landing on the robot barge in choppy seas. If this BEAM module actually works well over the next two years (once it is successfully attached and inflated ... which hadn't yet happened at the time of this writing), it could change a lot about how we explore deep space and protect our astronauts on the surface of other worlds. Enjoy.
For a NASA animation about the BEAM attachment and inflation, see: http://jsbrookspresents.blogspot.com/2016/04/beam-installation-animation-flew-april.html
For more on the successful Falcon 9 barge landing, see: http://jsbrookspresents.blogspot.com/2016/04/spacex-sticks-landing.html