HOW AN ASTRONAUT HELMET WORKS
A Panoply 2015 Interactive presented by
Have you ever gone swimming? Put your face in the water? Needed to hold your nose…hold your breath? Why is that? Because you cannot breathe water and you need to breathe to stay alive. You only can breathe air. But people do swim underwater and do not hold their breath. They use scuba masks to do this. The mask protects them from the water and provides the air so that they can breathe.
An astronaut in space is not in water. The astronaut is in a vacuum. Just like the swimmer he cannot breathe vacuum. The astronaut needs air. The astronaut does not use a mask. The astronaut uses a spacesuit and a helmet. The helmet protects the astronaut’s head from the vacuum and it provides a way to get air to the astronaut to breathe.
An astronaut helmet is part of the astronaut’s spacesuit, and they work together as one.
According to nasa.gov, the helmet has a vent pad that direct oxygen from another part of the spacesuit into the front part of the helmet. The helmet keeps the oxygen at the right pressure around the head. The main part of the helmet is the clear plastic bubble. The bubble is covered by a visor that has a gold layer that filters out the sun’s harmful rays and protects the astronaut from extreme temperatures and small objects that may hit the spacewalker. Source: https://www.nasa.gov/audience/foreducators/spacesuits/home/clickable_suit_nf.html
SPACESUIT AND HELMET THROUGH THE YEARS
HISTORY OF SPACESUITS
FUTURE SPACESUIT AND HELMET
DETAILED INFORMATION ABOUT SPACESUITS AND HELMETS
LEARN ABOUT SPACESUITS
HOW SPACESUITS WORK