We don't have an official launch date yet for SpaceX's historic rocket re-launch just yet, but it could come as soon as March 29th. During this flight, which will deliver the SES-10 satellite to geostationary orbit, the company plans to reuse the Falcon 9 first stage booster it successfully landed on a drone ship last April. That landing came after the Falcon 9 lifted a cargo ship toward the International Space Station.
Here's what we know so far about the upcoming launch: It can occur no earlier than March 29th, because the launch of an Atlas V rocket has slipped to March 27th, and it requires about 48 hours for the Air Force to reconfigure its downrange tracking system for a launch from a different pad. Further changes to the Atlas launch schedule could push the SpaceX launch into early April.
from There and back again: SpaceX to make history by re-flying orbital rocket