SOLAR SYSTEM

UNIVERSE

SPACE EXPLORATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In 1957, the first artificial satellite was put into space. By 1969, American astronauts landed on the Moon. What MOST likely helped scientists to be able to go from launching artificial satellites to sending spacecraft to the Moon in just twelve years?
A
Scientists discovered a way that rockets could travel at the speed of light.
B
Scientists improved instruments that helped calculate the distance to the Moon.
C
Scientists improved on the older rockets that were designed by previous engineers.
D
Scientists gained information that the gravity of the Moon was less than that of Earth.
Explanation: 

Detailed explanation-1: -What MOST likely helped scientists to be able to go from launching artificial satellites to sending spacecraft to the Moon in just twelve years? A. Scientists discovered a way that rockets could travel at the speed of light.

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