UNIVERSE
SPACE EXPLORATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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why Earth rotates on its axis every day.
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what substances are found in moon dust.
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when the first green plants appeared on Earth.
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how to solve problems of living in space.
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Detailed explanation-1: -An orbiting spacecraft moves at the right speed so the curve of its fall matches the curve of Earth. Because of this, the spacecraft keeps falling toward the ground but never hits it.
Detailed explanation-2: -It’s all about location. An orbiting laboratory provides researchers with the unique features of low-Earth orbit (LEO): long-duration microgravity, exposure to space, and a unique perspective on our planet. These attributes enable scientists to conduct innovative experiments that cannot be done anywhere else.
Detailed explanation-3: -Most of the science experiments aboard the station aim to investigate how things work differently in microgravity-such as the way a flame burns or how mouse cells develop-to see whether those lessons can be applied to new technologies or drugs back on Earth.
Detailed explanation-4: -The space station has been continuously occupied since November 2000. An international crew of seven people live and work while traveling at a speed of five miles per second, orbiting Earth about every 90 minutes.