5/8/2012 - Mars habitats fill a 33rd Fighter Wing hangar May 4 at Eglin Air Force Base, Fla. More than 100 military volunteers assisted more than 450 students from Lewis, Longwood, Wright, Baker and Eglin Elementary Schools construct habitats during the 17th annual Marsville program. The experience is designed to inspire students to enter the highly demanding career fields of science, technology, engineering and math. (U.S. Air Force photo/Randy Gon)

5/8/2012 - A student from Lewis Elementary School arranges a miniature mock-up of his Mars habitat just before judging May 4 at Eglin Air Force Base, Fla. More than 450 students from Lewis, Longwood, Wright, Baker and Eglin Elementary Schools participated in the 17th annual Marsville event. The program is designed to inspire students to enter the highly demanding career fields of science, technology, engineering and math. (U.S. Air Force photo/Randy Gon)

5/8/2012 - Petty Officer 2nd Class John Mahood, Navy Fighter Attack Squadron-101, provides instruction to students on designing Mars habitats during the 17th annual Marsville May 4 at Eglin Air Force Base, Fla. The Marsville program is designed to inspire 5th grade students to enter the highly demanding career fields of science, technology, engineering and math. (U.S. Air Force photo/Randy Gon)

5/8/2012 - Sgt. Jordan Dennis, of Marine Fighter Attack Squadron-501, escorts students on a tour of the F-35B inside the Marine Corps hangar, capping off their participation in 17th annual Marsville event May 4 at Eglin Air Force Base, Fla. The Marsville program is designed to inspire students to enter the highly demanding career fields of science, technology, engineering and math. (U.S. Air Force photo/Randy Gon)

5/8/2012 - Petty Officer 2nd Class John Mahood, Navy Fighter Attack Squadron-101 and more than 100 military volunteers helped more than 450 students from five local area schools construct Mars habitats during the 17th annual Marsville event May 4 at Eglin Air Force Base, Fla. The Marsville program is designed to inspire 5th grade students to enter the highly demanding career fields of science, technology, engineering and math. (U.S. Air Force photo/Randy Gon)