HI-SEAS stands for Hawaii Space Exploration Analog and Simulation. The aim of HI-SEAS is to investigate risks and challenges associated with a mission on Mars through a number of simulations in the analog environment of the Mauna Loa volcano on the Big Island in Hawaii. The habitat is located on the slopes of this volcano, at an altitude of approximately 2400 m (8000 ft).
The first mission – last year – was a food study and focused on food preparation strategies and new forms of food for long-term space exploration missions. It was a four-month study with six astronaut-like crew members.