Space Communications Specialist Alexandra Doten, AKA Astro Alexandra, on the gear designed for future space travel, what will ...

or travel to Mars, space suits must serve several vital functions: provide oxygen, control temperature, permit movement, power communications, and protect against solar radiation. The Z-2 is the ...

The final painting (above) satisfied Sagan, his years of study evident in the details: The creature’s spindly limbs suit Mars’s low gravity; its glass-like shield blocks ultraviolet radiation.