newYorkTimes

In a Dome in Hawaii, a Mission to Mars

On the way to Mars, Neil Scheibelhut stopped by Walmart for mouthwash and dental floss. “We’re picking up some last-minute things,” he said via cellphone last Wednesday afternoon from the store.

Mr. Scheibelhut is not actually an astronaut leaving the earth. But three hours later, he and five other people stepped into a dome-shaped building on a Hawaiian volcano…(more)..