Air Company co-founder and chief technology officer Stafford Sheehan demonstrates the firm’s patented system for converting carbon dioxide and hydrogen gas into a feedstock to grow single-cell proteins for nourishing astronauts on long-duration, deep space missions, at his factory in New York City, U.S., in this undated handout picture. The technology was originally developed to produce high-purity alcohols for jet fuel, perfumes and vodka. Air Company/Handout via REUTERS