The moon in our backyard

Tiffany Swarmer and Ross Lockwood of the HI-SEAS Crew 2 exit the simulated Mars habitat to demonstrate their EVA suits on July 24, 2014, on Mauna Loa. (HOLLYN JOHNSON/Tribune-Herald)

HILO — A small dome on the slopes of Mauna Loa used for the past five years as a NASA-funded Mars simulation is being given a new mission.