Watch 4 astronauts dock SpaceX's Crew Dragon spaceship to the International Space Station live online
SpaceX; NASA; Samantha Lee/Business Insider
- SpaceX just launched four astronauts into orbit aboard its Crew Dragon spaceship.
- The astronauts are expected to dock to the International Space Station on Monday at 11 p.m. ET.
- Docking is a complex series of maneuvers that must go right for the Crew-1 mission to be successful.
- Watch this crucial part of the mission live on NASA TV's broadcast below.
- Visit Business Insider's homepage for more stories.
SpaceX rocketed four astronauts into Earth's orbit on Sunday, kicking off its most ambitious spaceflight yet for NASA.
The mission, called Crew-1, is set to bring Mike Hopkins, Victor Glover, and Shannon Walker of NASA, along with Soichi Noguchi of the Japanese Aerospace Exploration Agency, to the International Space Station. They're scheduled to stay there for six months, constituting the longest human spaceflight in NASA history.
The astronauts launched aboard a Crew Dragon spaceship on Sunday evening. Once in orbit, the crew changed out of their spacesuits into more comfortable clothes, ate dinner, and settled down for a night's rest.
All in all, they're set to spend 27 hours inside the Crew Dragon capsule, which the astronauts have named Resilience, before its orbit aligns with the ISS and it can dock to a port on the station. The docking operation requires a complex set of maneuvers, and the Crew-1 launch won't be considered complete until it's done. If the spaceship can't dock, it will have to turn around, plummet through Earth's atmosphere, and parachute into the ocean so NASA and SpaceX can recover the astronauts.
If docking succeeds, though, Crew-1 will become the first operational mission to come out of a decade-long effort to restore NASA's human spaceflight capabilities. Through its Commercial Crew Program, the space agency has funded the development of commercial, astronaut-ready launch systems from SpaceX and Boeing. NASA has spent more than $6 billion on the program, according to The Planetary Society.
SpaceX became the first company to receive NASA's human-spaceflight certification on Tuesday, and Crew-1 is its first official mission. The company proved its human-launch abilities this summer when it rocketed NASA astronauts Bob Behnken and Doug Hurley to the ISS in a test flight called Demo-2.
Now, the four astronauts on the Resilience spaceship are awake and preparing for the docking operation ahead.
"We're not done yet," Kathy Lueders, NASA's head of human spaceflight, told reporters two hours after the launch. "That spacecraft's out there with those four precious crew members on [it], and we're going to get them safely to the International Space Station tomorrow."
NASA will broadcast the docking on its livestream below:
How a 13-ton spaceship precision maneuvers into an ISS port
During the docking, the Crew Dragon ship will stop about 400 meters below the space station, then swing up and in front of it. The capsule will then slowly pull up to about 220 meters ahead of the station's Node 2 forward port. Assuming all goes well, the spaceship's autopilot will slowly inch it toward the football-field-size, orbiting laboratory and line up its docking system with the adapter on the port.
The flight is programmed to be autonomous, but the crew will monitor the process. They can manually maneuver the spacecraft if anything goes wrong.
NASA
"Right now all the systems are working. And so we're not expecting there to be any issues with the docking," Lueders said.
On their flight, Behnken and Hurley turned off the auto-pilot to try out some manual maneuvers. Demo-2 was a test flight, after all, and part of it was making sure the backup systems worked.
"It flew just about like the [simulator], so my congratulations to the folks in Hawthorne. It flew really well, very really crisp," Hurley said during a live webcast after the docking, adding that its handling was "a little sloppier" in an up-down direction, though this was as expected.
If all goes well Monday night, and this new Crew Dragon secures itself to the ISS in the same way the last one did, the station's adapter will slowly fill with air, allow the astronauts inside to open their hatches, and then greet each other.
Kate Rubins, the NASA astronaut currently on the ISS, will be waiting to greet them.
"I have some great friends flying on that vehicle, so I'm going to be pretty happy to open the hatch and welcome them to the space station," she told Business Insider.
NASA
Russian cosmonauts Sergey Ryzhikov and Sergey Kud-Sverchkov will also welcome Crew-1 to the space station.
The Crew Dragon will remain attached to the ISS for the astronauts' entire stay there. The Resilience capsule has a new set of solar panels that are much more durable than the ones that flew with Behnken and Hurley. Those previous solar panels would have begun to degrade in the harsh radiation of space after just 110 days (that mission only lasted two months). Resilience, however, is certified to weather 210 days — nearly seven months — in space.
This may not be the only docking in the Crew-1 mission
In another major upgrade, Resilience is programmed with the ability to move itself to another of the four ports on the US section of the ISS, in order to make room for other incoming spaceships.
"It's getting a little crowded in space. And that's a really good thing," NASA astronaut Suni Williams said in a Friday briefing.
Williams is set to fly on the first operational mission of Boeing's CST-100 Starliner — that company's spaceship for astronauts, which was funded and designed through NASA's Commercial Crew Program as well. The Starliner is set to reattempt an uncrewed test flight to the space station in 2021, since the first test failed. That might require the Crew Dragon to move to a different port.
To relocate the spaceship, the crew will climb back in and run new software that should maneuver the Crew Dragon away from its original docking point, the Forward Port, and re-dock to the station's Zenith Port.
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