UNIVERSE
SPACE EXPLORATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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oxygen
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spacesuit
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handle bars
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None of the above
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Detailed explanation-1: -Because there is nothing out in space (like an atmosphere), the sound waves from one astronaut’s whistling can’t travel over to the other astronaut’s ears. That’s why the astronauts use radios to communicate-even if they’re floating in space right next to each other!
Detailed explanation-2: -NASA uses rockets and spacecraft to send humans into space. Some spacecraft go where humans cannot travel.
Detailed explanation-3: -Docking specifically refers to joining of two separate free-flying space vehicles.
Detailed explanation-4: -Preventing Bone Loss in Space Flight with Prophylactic Use of Bisphosphonate: Health Promotion of the Elderly by Space Medicine Technologies. An astronaut performing exercise in the International Space Station.