Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, he realized, was the best job in the world -- it let him tell stories about space, the planet, climate change and the people working at the frontiers of human knowledge. He also owns a lot of ugly Christmas sweaters.
The most powerful rocket from
is set to take to the skies once again. Falcon Heavy is scheduled for its first nighttime launch late on Monday, June 24 (Tuesday, June 25 in some places). This will be the rocket system's third flight and it marks a historic point in reusability for the Heavy, with the two side boosters being reused for the first time. By SpaceX's own admission, the launch will be among the most challenging in the company's history.
NASA, which has some payloads on board, will livestream the proceedings starting at 8 p.m. PT from Launch Complex 39A at the Kennedy Space Center in Florida. The actual launch window opens at 8:30 p.m. PT and will remain open for approximately four hours. The latest update from SpaceX suggests the launch will occur at 2:30 a.m. ET, which corresponds to a late kick-off for the West Coast at 11:30 p.m. PT.
SpaceX has its own livestream webcast as well:
Currently, the weather conditions are 70% favorable and additional updates on the weather will be provided as Monday progresses, but if the launch doesn't go ahead as planned, a backup window will open at 8:30 p.m. PT on Tuesday, June 25.
SpaceX shared a scenic view of Falcon Heavy sitting upright on the launchpad on Monday.
Watch this: Are SpaceX Starlink satellites ruining the night sky?
"The STP-2 mission will be among the most challenging launches in SpaceX history," SpaceX said, citing four separate upper-stage engine burns, three separate deployment orbits and a total mission duration of over six hours. The final deployments will occur around 3.5 hours into the mission. For comparison, the last Falcon Heavy mission deployed its satellite just 34 minutes after launch.
SpaceX will attempt to land the side boosters on ground landing zones, and the center core on the Of Course I Still Love You droneship in the Atlantic Ocean. This will be the first time the side boosters have been reused in a Falcon Heavy launch -- so the stakes are relatively high.
SpaceX will be hoping to avoid a repeat of Falcon Heavy's second flight in April, in which the center core landed successfully on the droneship, but was lost due to rough sea conditions. SpaceX hopes to bring it safely home this time but due to the orbital requirements of the Heavy's payloads this will be an extremely difficult capture, with the core landing on the droneship over 768 miles from shore -- further away than ever before.