When NASA sent humans to the Moon in 1969, one of the many risks the agency had to anticipate was space rocks penetrating space suits or astronaut equipment. in the space.
According to “space”, the astronauts were not in great danger at the time, according to Bill Cook, head of NASA’s Meteor Environment Office at NASA’s Marshall Space Flight Center in Alabama. An astronaut with a body size of one millimeter per million per hour per person.
NASA is preparing to return humans to the moon by 2025, and one day it will establish a base either orbiting or on the moon, so it is more important than ever to understand the frequency with which our natural satellite is subjected to impact, and the question was how many objects are hitting the moon each day ? How about every year?
The answer depends on the size of the object, Cook said, as NASA’s Meteor Environment Office studies the space environment around Earth and the Moon to understand the flow of meteorites, as space rocks range in size from dust to small asteroids about 3 feet or one meter wide. Familiar with what hits the moon from meteors every day.
For collisions smaller than a millimeter, the number cannot be precisely determined, but Cooke estimates that 11 to 1,100 tons of mass about 5.5 cars of dust collide with the Moon each day, and for larger rocks, the estimates are clearer.
“There are about 100 pingpong ball-sized meteors hitting the moon every day,” Cook said. That adds up to roughly 33,000 meteors a year, and despite their small size, each of these pingpong ball-sized rocks impacts the surface with a force of 7 pounds (3.2 kg). of dynamite.
Larger meteorites have also hit the moon, but at a lower rate, and Cook estimates that larger meteorites, such as those with a diameter of 8 feet (2.5 meters), collide with the moon about every four years.
These bodies hit the moon with a force of a kiloton, or 1,000 tons (900 metric tons) of TNT. The moon is about 4.5 billion years old, so it’s no wonder its surface is littered with all kinds of craters from these impacts.
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