CAPE CANAVERAL, Fla. – Jared Sass talks to Dr. Mason Peck, NASA's chief technologist, inside the Cryogenics lab at NASA's Kennedy Space Center in Florida as Robert Johnson, left, Adam Swanger and James Fesmire look on. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Eliza Montgomery, right, talks to Dr. Mason Peck, NASA's chief technologist, inside the Corrosion lab at NASA's Kennedy Space Center in Florida as David Steitz, left, and Karen Thompson, Kennedy's chief technologist, look on. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – James Fesmire, right, talks to Dr. Mason Peck, NASA's chief technologist, inside the Cryogenics lab at NASA's Kennedy Space Center in Florida as Johnny Nguyen, second from left, looks on. Photo credit: NASA/Jim Grossman