Scientists are set to mix biology and geology this month inside Hawaii Volcanoes National Park as they help Nasa get ready for an eventual manned mission to Mars.

The researchers will hike around Mauna Ulu to practice collecting rock samples as they would on the Red Planet, according to reports.

The purpose of the initiative is to develop protocols that would be used on a real Mars mission to identify and protect samples which could host life.

John Hamilton, an astronomy faculty member at the University of Hawaii at Hilo, said one concern is the possible contamination of rocks which might be home to living bacteria.

"Really, the whole reason of going to Mars is to see if there's life there," he said.

"There's a lot of great geology. But are we alone?"

The project is known as Basalt (Biologic Analog Science Associated with Lava Terrains).

Mr Hamilton said Nasa selected Hawaii, along with the Snake River plain in Idaho, as research sites because they both host volcanic terrain similar to Mars.

The Nasa grant is administered through the University of Hawaii-Hilo. The Pacific International Space Centre for Exploration Systems also is a partner.

Mr Hamilton said no spacesuits will be used with this project, though a "mission control" is being set up at Kilauea Military Camp. As many as 20 UH-Hilo students will assist the team.

Communication with researchers in the field will be placed on time delays of five or 20 minutes to simulate an actual mission, he said.

AP