SOLAR SYSTEM

UNIVERSE

SPACE EXPLORATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why are space suits necessary for astronauts working on the surface of another planet?
A
Space suits provide the weight needed to hold astronauts down on the planet’s surface.
B
Space suits allow astronauts to carry things that normally would be too heavy.
C
Space suits make an astronaut more visible to other astronauts
D
Space suits provide protection from radiation and offer normal air pressure inside.
Explanation: 

Detailed explanation-1: -Astronauts must wear spacesuits whenever they leave a spacecraft and are exposed to the environment of space. In space, there is no air to breath and no air pressure. Space is extremely cold and filled with dangerous radiation. Without protection, an astronaut would quickly die in space.

Detailed explanation-2: -In Earth orbit, conditions can be as cold as minus 250 degrees Fahrenheit. In the sunlight, they can be as hot as 250 degrees. A spacesuit protects astronauts from those extreme temperatures. Spacesuits also supply astronauts with oxygen to breathe while they are in the vacuum of space.

Detailed explanation-3: -However, since there is no atmosphere layer in space, the sun’s harmful rays, also called radiation, can cause great harm to astronauts. Space suits have layers to protect astronauts from radiation and reflect incoming rays. Also included in the spacesuit is a gold-plated visor section to protect the astronauts’ eyes.

Detailed explanation-4: -Space suits provide protection from the UV rays, but they provide limited protection from particle radiation and gamma and x ray. If particles have enough energy they simply pass through the space suit.

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