Jupiter is the most massive planet in the solar system, with a mass 318 times that of Earth.
Because of this, it strongly influences the motion of objects in the solar system.
Most asteroids and comets that would collide with Earth are either deflected from their trajectories or captured by Jupiter’s gravity.
Jupiter keeps the asteroid belt between Mars and itself, which reduces the risk of collisions with Earth.
It often acts as a “cosmic vacuum cleaner,” absorbing large objects that would threaten the inner planets.
For example, the collision of comet Shoemaker-Levy 9 with Jupiter in 1994 demonstrated its protective role.
Without Jupiter, the likelihood that Earth would be subject to frequent collisions with asteroids and comets would increase significantly.
Some scientists believe that without such a “shield,” the development of complex life on Earth would be greatly hindered or even impossible.
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