Update: SpaceX was forced to postpone its sixth resupply mission just three minutes before launch Monday due to an approaching anvil cloud that drifted too close to the launch site in Cape Canaveral Air Force Station. The next attempt is scheduled for 4:10 p.m. EDT Tuesday.
SpaceX is about to make its second attempt at something that’s never been done in the history of space exploration: Launch a rocket, then land said rocket.