by francopoli

Will become the third reusable space vehicle after the shuttle and the X-37.

SpaceX aims to kick off its seventh mission of the year at 5:55 p.m. EDT (2155 GMT) when the nine Merlin engines powering the Falcon 9's first stage ignite, catapulting the booster off from launch pad 39A at NASA’s Kennedy Space Center here on Florida's Space Coast. You can watch it live here at Space.com, courtesy of SpaceX.

Will also include a return to launch pad landing of the first stage.