Category: Space
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Why is the earth round?
The Earth is round because it is an oblate spheroid, a type of sphere that is slightly flattened at the poles and bulges at the equator. The Earth’s round shape is due to the forces of gravity acting on the planet’s mass. Gravity is the force that attracts objects towards one another. It is the…
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Big bang theory in easy words?
The Big Bang theory is a scientific explanation for the origin and evolution of the universe. According to the theory, the universe began as a singularity, an infinitesimally small, infinitely hot, and infinitely dense point. About 13.8 billion years ago, this singularity experienced an immense explosion, which caused it to rapidly expand and cool, forming…
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What would happen if the moon disappeared?
If the Moon were to suddenly disappear, it would have a significant impact on Earth. The most immediate and noticeable effect would be a sudden and dramatic change in the tides. The Moon’s gravitational pull is what causes the tides, and without it, there would be no tide at all. This would have a major…
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Why is the sky blue?
The sky appears blue because of the way the Earth’s atmosphere scatters sunlight. When sunlight reaches the Earth’s atmosphere, it is made up of short-wavelength blue and violet light, as well as longer-wavelength red, orange, and yellow light. The shorter-wavelength blue and violet light are more easily scattered in all directions by the gases and…
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Which country landed on the moon first?
The United States was the first to land a spacecraft on the moon. The landing occurred on July 20, 1969, when the Apollo 11 mission successfully landed the lunar module, Eagle, on the moon’s surface. The mission was manned by astronauts Neil Armstrong and Edwin “Buzz” Aldrin, who became the first humans to walk on…