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[00:00.38] Commander Haston, a biologist, was the first to speak during a ceremony to mark the mission's end.

[00:09.94] "Hello. It's actually so wonderful just to be able to say hello to you," she said with a laugh.

[00:19.24] Jones – who works as an emergency room doctor – was overcome with emotion after leaving the habitat.

[00:28.27] "I really hope I don't cry standing up here in front of all of you," he said.

[00:34.91] Brockwell, a structural engineer, said the experience showed him the importance of living sustainably to help mankind on Earth.

[00:48.19] “I’m grateful for the chance to live the idea that we must utilize resources no faster than they can be replenished, and produce waste no faster than they can be processed back into resources," he said.

[01:07.32] Selariu, a microbiologist, explained that she had been asked by people many times why humans like her would even want to go to Mars. “Because it’s possible,” she said.

[01:23.79] “Because space can unite and bring out the best in us.” She added, “Because it’s one defining step that Earthlings will take to light the way into the next centuries.”

[01:38.66] The NASA program is officially called the Crew Health and Performance Exploration Analog (CHAPEA).

[01:49.02] The agency says the latest experiment was the first of three it plans to carry out.

[01:56.99] The target for the next one will be sometime in 2025.

[02:02.57] Steve Koerner is the deputy director of Johnson Space Center.

[02:08.68] He said most of the experiment centered on nutrition and how that affected the crew’s performance.

[02:16.64] The work was “crucial science as we prepare to send people on to the red planet.”

[02:25.68] Koerner added, “They've been separated from their families, placed on a carefully prescribed meal plan and undergone a lot of observation.”

[02:37.36] He noted that “Mars is our goal,” and called the project an important step in America’s ongoing efforts to be a leader in future world space exploration activities.

[02:53.57] Under its Artemis program, NASA plans to send humans back to the moon in order to learn how to live in space for long periods.

[03:04.99] After that, the goal is to send astronauts to Mars.