Spacesuit Evolution Spacesuits have evolved over the past 60 years of human space exploration.   In the Mercury era, the astronauts never left the spacecraft, so the suits were high-altitude flight suits (worn by the “Mercury 7” in case of a rapid cabin depressurization). This type of spacesuit goes by several different acronyms today; LEA (launch/entry/abort); … Continue reading Spacesuit Evolution