Four astronauts preparing for an extended stay in space have started quarantine as they get ready for their next big mission.

The buzz is building for NASA’s Artemis II mission that will send four astronauts on a 10-day voyage around the moon. The highly anticipated endeavor will be the first crewed moon-bound flight since the final Apollo mission way back in 1972.

NASA’s rehearsal for Artemis II marks one of the final steps before four astronauts get launched into deep space for the first time since the Apollo program ended.

NASA officially named the Artemis II crew nearly three years ago, and their experience and accomplishments continue to set them apart.

As NASA prepares to send astronauts around the moon, a critical dress rehearsal on Monday will reveal whether its rocket is truly ready to fly.

Ahead of the launch of Artemis II, the first crewed mission to the moon in more than 50 years, astronauts share the movies that capture the danger, teamwork, and wonder of spaceflight. Their picks offer cinematic glimpses into the real challenges and triumphs of exploring beyond Earth.

If the fueling test goes well, the Artemis II flight around the moon and back could take off as early as Feb. 8.

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.

NASA fueled its new moon rocket in one final make-or-break test Monday, with hopes of sending astronauts on a lunar fly-around as soon as this coming weekend. The launch team began loading the 322-foot (98-meter) rocket with super-cold hydrogen and oxygen at Kennedy Space Center late at midday.

NASA astronaut Suni Williams, who famously stayed in space for an extended nine-month visit after problems with an experimental capsule, has retired after 27 years, NASA said Tuesday