Jumping from the solar system to another planetary system passing by,
The existence of life on earth and the evolution of advanced life is also related to the fact that the earth has a Jupiter,
The solar system will be bombarded by such comets,
Comets from alien galaxies are the main cause of extinction on Earth,
If its mass is too large, it will burn too fast to wait for life to appear,
The sun has a companion star called Nemesis,
This means that microbes may be able to take advantage of this process,
Every 26 million years or so, it collides with the Oort cloud region at the edge of the solar system,
Frequent exchange of material with other planetary systems,
faster than the relative velocities of two stars at close encounters,
Earth' s orbit is appropriate, it makes the temperature on Earth just right for life to exist,
Dust kicked up by comet impacts can be pushed by the pressure of sunlight,
If Earth were in the orbit of Venus or Mars, it would be too hot or too cold for life to exist,
Mass extinctions on Earth seem to happen every 20 to 40 million years,
This number is very close to the cycle of mass extinctions on Earth,
Flying outward at a speed of 108,000 kilometers per hour,
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