Spacesuits supply astronauts with oxygen to breathe while they are in the vacuum of space. The suits contain water to drink during spacewalks. They protect astronauts from being injured from impacts of small bits of space dust. ... The suits even have visors to protect astronauts' eyes from the bright sunlight.

Do astronauts poop in their space suits?

Eliminating Waste

Each spacewalking astronaut wears a large, absorbent diaper called a Maximum Absorption Garment (MAG) to collect urine and feces while in the space suit. The astronaut disposes the MAG when the spacewalk is over and he/she gets dressed in regular work clothes.

How does a space suit maintain pressure?

Helmet. The helmet on spacesuits built for spacewalks serves as a pressure bubble and is made of strong plastic to keep the pressure of the suit contained. It also has a ventilation system that provides astronauts with oxygen. Helmets also contain a small foam block that astronauts can use to scratch their noses.