Gravity on other planets: detailed analysis

The article tells about what gravity is, what gravity on other planets, Why it arises, what is needed, as well as its impact on various organisms.

Space

People dreamed of traveling to the stars from time immemorial, from the time when the first astronomers examined other planets of our system and their satellites in primitive telescopes, and hence, in their opinion, they could be inhabited.

Many centuries have passed since then, but alas, interplanetary and even more so, flights to other stars are impossible now. And the only extraterrestrial object, where the researchers visited, is the Moon. But already at the beginning of the 20th century, scientists knew that gravity on other planets is different from ours. But why? What does it represent, why does it arise and can it be disastrous? We will analyze these questions.

A little physics

Isaac Newton also developed a theory that any two objects experience a mutual attraction force. In the scales of the cosmos and the universe as a whole, a similar phenomenon manifests itself very clearly. The most striking example is our planet and the Moon, which is due to gravity and revolves around the Earth. We see the manifestation of gravity in everyday life, just got used to it and do not pay attention at all. This is the so-called attraction force. It is because of it that we do not soar in the air, but walk calmly on the ground. It also helps to keep our atmosphere from gradual volatilization into space. At us it makes conditional 1 G, but what gravity on other planets?

Mars

Mars is most similar to physical data on our planet. Of course, living there is problematic due to lack of air and water, but it is in the so-called habitat zone. True, it is very conditional. It has no horrendous heat like on Venus, centuries-old storms as on Jupiter, and absolute cold as on Titan. And scientists in recent decades have not abandoned any attempts to come up with methods for its terraforming, creating livable conditions without spacesuits. But what is the phenomenon of gravity on Mars? It is 0.38 g from the earth's surface, which is about half the size. This means that on the red planet you can jump and jump much higher than on Earth, and all the weights will also be much less. And this is quite enough to keep not only its present, "frail" and liquid atmosphere, but also much more dense.

However, it's too early to talk about terraforming, because you need to at least simply land on it and establish permanent and reliable flights. But still gravity on Mars is quite suitable for the habitation of future settlers.

Venus

Another planet closest to us (except the Moon) is Venus. This is a world with monstrous conditions and incredibly dense atmosphere, for a long time nobody could look into it. Her presence, by the way, was discovered by none other than Mikhail Lomonosov.

The atmosphere is the cause of the greenhouse effect and a terrifying average surface temperature of 467 degrees Celsius! On the planet, precipitation of sulfuric acid is constantly falling out and lakes of liquid tin are boiling. Such is the inhospitable planet Venus. Its gravity is 0.904 G from the earth, which is almost identical.

She is also a candidate for terraforming, and for the first time her surface was reached by the Soviet research station on August 17, 1970.

Jupiter

Another planet of the solar system. Rather, the gas giant, consisting mainly of hydrogen, which is closer to the surface because of the monstrous pressure becomes liquid. By the way, by the way, in its depths it is quite possible that a thermonuclear reaction will break out one day , and we will have two suns. But if this happens, then, to put it mildly, not soon, so you should not worry. Gravity on Jupiter Is 2.535 g relative to the terrestrial.

Moon

As already mentioned, the only object of our system (except the Earth) where people visited was the Moon. True, disputes are still going on, whether those landings were a reality or a hoax. Nevertheless, because of its low mass, the gravity on the surface is only 0.165 g from the ground.

The influence of gravity on living organisms

The force of attraction also has various effects on living beings. Simply put, when other inhabited worlds are discovered, we will see that their inhabitants are very different from each other, depending on the mass of their planets. For example, if the Moon was inhabited, then it would be inhabited by very tall and fragile creatures, and vice versa, on a planet with a mass of Jupiter, the inhabitants would be very low, strong and massive. Otherwise, on weak limbs in such conditions simply will not survive at all desire.

The force of attraction will play an important role in the future colonization of the same Mars. According to the laws of biology, if you do not use something, then it gradually atrophies. Astronauts from the ISS on Earth are met with wheelchairs, as in their weightlessness their muscles are involved very little, and even regular strength training does not help. So the offspring of the colonists on other planets will be at least higher and physically weaker than their ancestors.

So we figured out how much gravity on other planets.