Do Astronauts Wear Thermal Underwear in Space?

Do Astronauts Wear Thermal Underwear in Space?

Thermal underwear is a type of clothing that is designed to keep you warm in cold weather. But what about astronauts – do they wear thermal underwear in space? Here's what you need to know:

The temperature in space can vary. The temperature in space can vary depending on the location of the spacecraft. For example, the temperature on the surface of the Moon can range from -100°F to 250°F, while the temperature inside the International Space Station (ISS) is typically around 70°F.
Astronauts wear specialized clothing in space. While they don't typically wear thermal underwear as their outer layer of clothing, astronauts do wear thermal underwear as a base layer underneath their pressure suit to help keep them warm in cold temperatures.


The pressure suit has a built-in cooling and heating system. The pressure suit worn by astronauts has a built-in cooling and heating system that helps to regulate the astronaut's body temperature. This system can be adjusted to keep the astronaut comfortable in a variety of temperatures and conditions.
Astronauts also wear a thermal micrometeoroid garment. In addition to the pressure suit and thermal underwear, astronauts also wear a thermal micrometeoroid garment, which is a type of clothing that helps to protect them from micrometeoroids and other debris in space. This garment is made of layers of insulation and is designed to keep the astronaut warm in cold temperatures.
In conclusion, while thermal underwear is not typically worn as the outer layer of clothing by astronauts in space, it is an important part of their specialized clothing, worn as a base layer to help keep them warm in cold temperatures. Along with the pressure suit and thermal micrometeoroid garment, thermal underwear helps to keep astronauts safe and comfortable while in space.

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