SpaceX launched four astronauts toward the International Space Station on November 15. They docked on the satellite roughly 30 hours after.

NASA astronauts Michael Hopkins, Victor Glover, Shannon Walker and Japan Aerospace Exploration Agency (JAXA) astronaut Soichi Noguchi were aboard a SpaceX Crew Dragon capsule where they will then spend about six months in space before returning to Earth.

This is SpaceX's second launch with humans aboard. The first Crew Dragon to launch humans, which was still considered a test mission, took off in May earlier this year.

Kate Rubins, who was already on board the International Space Station, greets Noguchi and the rest of the team with a hug.
Kate Rubins, who was already on board the International Space Station, greets Noguchi and the rest of the team with a hug.
NASA
The SpaceX Crew Dragon capsule waits to dock the ISS.
The SpaceX Crew Dragon capsule waits to dock the ISS.
NASA
The crew's capsule is seen approaching the ISS.
The crew's capsule is seen approaching the ISS.
NASA
Members of the crew are seen inside the capsule.
Members of the crew are seen inside the capsule.
NASA
SpaceX's Falcon 9 rocket is seen over University of Central Florida's Bounce House-FBC Mortgage Field on November 15 in Orlando, Florida.
SpaceX's Falcon 9 rocket is seen over University of Central Florida's Bounce House-FBC Mortgage Field on November 15 in Orlando, Florida.
Alex Menendez/AP
The SpaceX Falcon 9 rocket lifts off.
The SpaceX Falcon 9 rocket lifts off.
Joel Kowsky/NASA
People watch the Crew Dragon launch in Tokyo on November 16.
People watch the Crew Dragon launch in Tokyo on November 16.
Keita Iijima/The Yomiuri Shimbun/AP
A Falcon 9 SpaceX rocket with the Crew Dragon capsule is seen in this long-exposure photo as it lifts off from Kennedy Space Center.
A Falcon 9 SpaceX rocket with the Crew Dragon capsule is seen in this long-exposure photo as it lifts off from Kennedy Space Center.
John Raoux/AP
The rocket carrying the Crew Dragon spacecraft is launched.
The rocket carrying the Crew Dragon spacecraft is launched.
Joel Kowsky/NASA
A NASA control room is seen during launch.
A NASA control room is seen during launch.
NASA
A SpaceX Falcon 9 rocket carrying the company's Crew Dragon spacecraft lifts off for the International Space Station.
A SpaceX Falcon 9 rocket carrying the company's Crew Dragon spacecraft lifts off for the International Space Station.
Joel Kowsky/NASA
Noguchi sticks his arm out the window while riding to Launch Pad 39A for liftoff.
Noguchi sticks his arm out the window while riding to Launch Pad 39A for liftoff.
Chris O'Meara/AP
Hopkins says goodbye to a family member before heading to the launch complex.
Hopkins says goodbye to a family member before heading to the launch complex.
Gregg Newton/AFP/Getty Images
Noguchi prepares to depart the Neil Armstrong Operations and Checkout Building with his crewmates to board the SpaceX Crew Dragon spacecraft.
Noguchi prepares to depart the Neil Armstrong Operations and Checkout Building with his crewmates to board the SpaceX Crew Dragon spacecraft.
Joel Kowsky/NASA
Glover, Hopkins, Walker and Noguchi wave as they leave the Operations and Checkout Building.
Glover, Hopkins, Walker and Noguchi wave as they leave the Operations and Checkout Building.
John Raoux/AP
A NASA helicopter flies past the launch pad at Kennedy Space Center on November 15.
A NASA helicopter flies past the launch pad at Kennedy Space Center on November 15.
Joel Kowsky/NASA
Glover places a Crew-1 mission sticker above the doorway to crew quarters at the Neil Armstrong Operations and Checkout Building as his fellow crewmates look on, November 12 at Kennedy Space Center.
Glover places a Crew-1 mission sticker above the doorway to crew quarters at the Neil Armstrong Operations and Checkout Building as his fellow crewmates look on, November 12 at Kennedy Space Center.
Joel Kowsky/NASA
Norm Knight, deputy director of Flight Operations at NASA's Johnson Space Center, watches a monitor during a launch dress rehearsal on November 12.
Norm Knight, deputy director of Flight Operations at NASA's Johnson Space Center, watches a monitor during a launch dress rehearsal on November 12.
Aubrey Gemignani/NASA
The SpaceX Falcon 9 rocket with the Crew Dragon spacecraft onboard is seen during preparations on November 9.
The SpaceX Falcon 9 rocket with the Crew Dragon spacecraft onboard is seen during preparations on November 9.
Joel Kowsky/NASA
The crew of the SpaceX Crew-1 mission pose for a photo with a SpaceX employee on November 8 at Kennedy Space Center.
The crew of the SpaceX Crew-1 mission pose for a photo with a SpaceX employee on November 8 at Kennedy Space Center.
Joe Burbank/Orlando Sentinel/Tribune News Service/Getty Images
This undated photo released by SpaceX in September shows Walker, Glover, Hopkins and Noguchi inside SpaceX's Crew Dragon spacecraft.
This undated photo released by SpaceX in September shows Walker, Glover, Hopkins and Noguchi inside SpaceX's Crew Dragon spacecraft.
SpaceX/AP