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Planning for the Moon? Check how often a celestial body hits the moon

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NASA plans to send someone else to the moon this decade. How often do spacecraft hit the moon? Is it safe to go there?

Nationalgeographic.co.id—For a long time, the moon has been observed to have large craters that are not protected by the atmosphere. It is very possible that the Earth satellite will be hit by several space objects.

This was a consideration when NASA planned to send the first humans to the moon in the 1960s. When, in their mission in 1969, it was anticipated to keep astronauts safe, to keep the astronaut’s clothing and equipment from being hit by space rocks.

An object that is just one millimeter wide is large enough to fit into an astronaut’s clothing. Fortunately, astronauts visiting the moon are not in great danger, according to Bill Cooke, head of NASA’s Bureau of Meteorological Environment. “The probability of an astronaut being hit by a millimeter-sized object is like one in a million per hour per person,” he said. Life Sciences.

So how many objects hit the moon each day? This understanding is important to know as the basis for NASA considering its plan to send people back in 2025. In the future, they also aspire to build bases on the surface or around the moon.

Cooke and his colleagues in his department are accustomed to understanding objects around the Earth and the moon.

Each year, Earth is hit by about 6,100 meteors large enough to fall, or the equivalent of 17 meteors per day. These objects do not contain small particles that are directly discharged into the atmosphere without being seen with the naked eye, or space dust. So Cooke was familiar with the things that hit Earth every day.

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Similarly on the Moon, Cooke explained how many space objects hit it, depending on its size. Objects smaller than a millimeter cannot be counted precisely, but it is estimated that between 11 and 1,100 tons of dust hit the moon every day. This mass is equivalent to 5.5 cars.

“There are about 100 meteorites the size of a ping-pong ball hitting the moon every day,” he said. Thus, an estimated 33,000 meteorites hit the moon each year. Despite their small size, each stone the size of a ping-pong ball can hit the lunar surface with a force of 3.2 kilograms of dynamite.

This number does not include major meteorites that hit less often. Cooke estimates that a larger object, such as 2.5 meters, could hit the moon every four years.

Scientists can study the effects of the moon in many ways. From the surface of the earth, scientists can observe with a telescope to observe the impact on the moon.


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