HONOLULU — Six scientists who were living under a dome on the slopes of a dormant Hawaii volcano for eight months to simulate life on Mars have emerged from isolation.

The crew stepped outside the dome that’s 8,000 feet up the slopes of Mauna Loa to feel fresh air on their skin Saturday. It was the first time they left without donning a space suit.

The scientists are part of a human performance study funded by NASA that tracked how they worked together as a team. They have been monitored by surveillance cameras, body movement trackers and electronic surveys.

Crew member Jocelyn Dunn said it was awesome to feel the sensation of wind on her skin.

“When we first walked out the door, it was scary not to have a suit on,” said Dunn, 27, a doctoral candidate at Purdue University. “We’ve been pretending for so long.”

The dome’s volcanic location, silence and its simulated airlock seal provided an atmosphere similar to space.

Looking out the dome’s porthole windows, all the scientists could see were lava fields and mountains, said University of Hawaii professor Kim Binsted, principal investigator for the study.

Spending eight months in a confined space with six people had its challenges, but crew members relieved stress doing team workouts and yoga. They were able to use a solar-powered treadmill and stationary bike, but only in the afternoons on sunny days.

The first thing crew members did when they emerged from the dome was to chow down on foods they’ve been craving – juicy watermelon, deviled eggs, peaches and croissants, which was a step up from the freeze dried chili they’d been eating.

Next on Dunn’s list: going for a swim. Showers in the isolated environment were limited to six minutes per week, she said.

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