Take a look at what to expect during SpaceX's next launch, COTS 2&3. Currently scheduled for launch no earlier than April 30th 2012 at 16:22 UTC, 11:22 Local time.

On this mission the Falcon 9 rocket will launch the Dragon spacecraft with 521KG of cargo and if all goes well will dock to the International Space Station for the first time.

Dragon also has the ability to return cargo, up to 660KG, back to Earth for research or refurbishment.