HAWTHORNE, Calif. — SpaceX is "go" to send four astronauts toward the International Space Station on Thursday, with a Falcon 9 and the Crew Dragon Grace poised to lift off from Cape Canaveral at 11:10 a.m. EDT on the Crew-13 mission for NASA.
The green light caps a methodical week of pre-flight milestones for the company, which only days earlier completed a clean static fire of the Falcon 9 that will carry the crew. NASA's associate administrator, Lori Glaze, summed up the mood at the final readiness review: "Right now, everything is 'go.'"
A Weather Watch, Not a Hardware Worry
The only real question mark is the Florida sky. Launch forecasters put the odds of acceptable weather at roughly 55 percent for the 11:10 a.m. attempt, leaving a 45 percent chance that clouds or wind push the mission to its backup window on Friday at 10:47 a.m. EDT.
Hardware, by contrast, is in good shape. The Crew Dragon Grace had been targeted for a September 12 launch before teams found a small propulsion-system leak during checkouts and stood down to fix it. SpaceX replaced the suspect components, re-tested the system and declared the capsule healthy — the kind of catch-it-early discipline that has defined the Dragon program's safety record.
Eight Hours to Docking
If Falcon 9 lights on time, Grace will chase the station through orbit and dock autonomously about eight hours later, near 8 p.m. EDT. The four-person crew will then begin a roughly six-month stay as part of Expedition 75.

