Two suits for two very different emergencies
A launch suit is designed for the unlikely event that a crew must leave a spacecraft in Earth’s atmosphere. NASA’s familiar bright-orange suits—often called “pumpkin suits”—make a person easier to spot against blue sky or dark water during a search-and-rescue operation. The color is a practical signal: rescuers may have to find a crew member quickly after an emergency landing or escape.
These suits also help protect astronauts inside a pressurized cabin. They can supply oxygen and pressure if the cabin loses air, and include survival gear for waiting to be recovered. They are not meant to let someone work outside a spacecraft. (Suit designs vary by spacecraft and mission; orange is especially associated with NASA’s launch-and-entry suits.)
White suits are built for exposure to space
A spacewalk suit has a different job: it is a small, wearable spacecraft. Its pressurized layers provide breathable air and help maintain a safe environment around the astronaut’s body, while other layers shield against hazards such as tiny fast-moving particles and extreme temperature changes.
White helps manage one of those challenges. In sunlight, a white outer surface reflects more incoming light than a dark one, limiting how much heat the suit absorbs. The suit’s life-support system and cooling garment handle the rest, carrying away heat generated by sunlight and by the astronaut’s own exertion.
The contrast is a reminder that “spacesuit” describes several specialized systems, not one all-purpose outfit: orange helps rescuers find a crew member near Earth, while the bulky white suit lets an astronaut work in the vacuum beyond the spacecraft.
