UNIVERSE
SATELLITESICY BODIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the moon.
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for 57 days.
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with a dog aboard.
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the atmosphere.
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Detailed explanation-1: -On October 4, 1957, the USSR launched Sputnik, the first artificial satellite to orbit Earth. The satellite, an 85-kilogram (187-pound) metal sphere the size of a basketball, was launched on a huge rocket and orbited Earth at 29, 000 kilometers per hour (18, 000 miles per hour) for three months.
Detailed explanation-2: -On October 4, 1957, the Soviet Union successfully launched Sputnik-1, the world’s first artificial satellite. Only about the size of a beach ball (22.8 inches or 58 cm. in diameter) and weighing 183.9 pounds (83.6 kg), it orbited the Earth in around 98 minutes.
Detailed explanation-3: -Aryabhata was the first artificial satellite launched by India on 19th April 1975.
Detailed explanation-4: -Officially, Sputnik was launched to correspond with the International Geophysical Year, a solar period that the International Council of Scientific Unions declared would be ideal for the launching of artificial satellites to study Earth and the solar system.