SpaceX CRS-7 launch scheduled for Sunday, June 28th

SpaceX's seventh International Space Station (ISS) cargo resupply mission is scheduled for launch on Sunday, June 28th at 10:21 AM Eastern Time.

Live coverage of the event starts at 10:00 AM (Eastern Time) on the SpaceX Lifestream channel.
While the primary mission of all cargo resupply missions is to get cargo safely to and from the ISS, which is the only true measure of success, most people following SpaceX's reusable rocket goal will be even more interested in the secondary mission goal of attempting to land the Falcon 9 rocket.  This will be the latest in a series of attempts - with each attempt providing data for the next, and getting closer and closer to the goal.  This "must read" article on the SpaceX side provides the details along with some great images and video.