NASA will launch two crewed missions in early February, sending astronauts to the ISS to prepare for Mars missions and another crew to orbit the moon.

The four crew members of NASA’s SpaceX Crew-12 mission began their routine two-week quarantine on Wednesday at NASA’s Johnson Space Center in Houston ahead of their upcoming launch to the International Space Station.

Crew-12 will fly to the orbiting laboratory aboard a SpaceX Dragon spacecraft, launched on a Falcon 9 rocket from Cape Canaveral Space Force Station in Florida. NASA says it is reviewing options to move the launch earlier than its original target date of Sunday, Feb. 15.

Watch views from the SpaceX Dragon spacecraft that carried the Fram2 crew. It was the "first polar-orbit human spaceflight mission to explore Earth," according to SpaceX. Credit: SpaceX

NASA and SpaceX are targeting no earlier than 5:05 p.m. EST, Wednesday, Jan. 14, for the undocking of the agency’s SpaceX Crew-11 mission.

After more than five months in space, four astronauts on a mission known as Crew-11 are about to cut their mission short and return to Earth.

The SpaceX Crew-11 mission ended with a splashdown after over five months on the ISS due to a medical issue. The crew underwent postflight reconditioning. They celebrated 25 years of continuous human presence on the ISS.

SpaceX Crew-11 splashed down safely in the Pacific after more than five months in orbit aboard the International Space Station. The four astronauts completed over 140 experiments and traveled nearly 71 million miles around Earth.