3 reasons that prevent aliens from visiting Earth... What are they?

Al-Arabiya reported that a study conducted by the “Sciencealert” website revealed that despite the emergence of several indicators suggesting the possibility of the existence of extraterrestrial beings, there are three reasons that make their visit to planet Earth unlikely.

Space is very vast beyond our imagination, as the closest star to our sun, “Proxima Centauri,” is located about 40 trillion kilometers away, which is equivalent to 268 thousand times the distance between the sun and Earth, and this is equivalent to 4.3 light years according to astronomers’ measurements.

Humans can travel through space at only a fraction of the speed of light using current technology. Even humanity’s fastest spacecraft, the Parker Solar Probe, has a maximum speed of approximately 191 kilometers per second, which is equivalent to 0.064% of the speed of light. At this speed, it would take about 6,650 years to reach Proxima Centauri.

For any aliens, the difference would be much greater given that a round trip from a distant star system would require a “necessarily higher speed.”

Thus, aliens will return to their home planet older than when they left, perhaps 100 years or more.

Huge energy requirements

Interstellar travel has “tremendous energy demands,” as the mass of a spacecraft increases with speed, so an increasing amount of energy is needed to accelerate it.

At the speed of light, the vehicle has a huge mass, which requires a huge amount of energy, which is impossible to provide theoretically.

Unique biosphere

The “biosphere” is the area where living organisms can live on planet Earth, and scientists describe it as “unique.”

Oxygen is not toxic to humans, but it is highly reactive and may be harmful to aliens, and therefore they need to wear protective suits as humans do when visiting harsh or toxic environments. (Arabic)