UNIVERSE
SPACE EXPLORATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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length of time astronauts spend in space
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demand to keep up with other countries’ space exploration efforts
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harsh conditions and long distances traveled in space
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none of these
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Detailed explanation-1: -Without space programs, we wouldn’t have GPS, accurate weather prediction, solar cells, or the ultraviolet filters in sunglasses and cameras. There’s also medical research happening in space right now that could cure diseases and prolong human lives, and these experiments can’t be done on Earth.
Detailed explanation-2: -The fundamental requirement of a crewed spacecraft is, of course, to provide an environment in which humans can survive and carry out the tasks required of them. This means, first of all, providing the spacecraft with an Earth like atmosphere in which humans can breathe.
Detailed explanation-3: -One of the main challenges in interplanetary travel is producing the very large velocity changes necessary to travel from one body to another in the Solar System. Due to the Sun’s gravitational pull, a spacecraft moving farther from the Sun will slow down, while a spacecraft moving closer will speed up.
Detailed explanation-4: -Scratch-resistant lenses. Ear thermometers. Shoe insoles. Invisible braces for teeth. Cordless tools. Tap water filters. Satellite navigation. Memory foam. More items