Because Mercury weighs less than Earth, its gravity would exert less force on your body. If you were on Jupiter, though, you would weigh a massive 253 pounds! That's because the gravity of Jupiter is about 99 percent as strong as that of Earth.
The weight of someone on Jupiter would be hard to imagine. You would feel so heavy everywhere you went. You could probably lift this person only so far before you got tired. After a while, you might want to put them down because their weight would crush you!
Jupiter is one of the largest planets in our solar system. It has an average diameter of 584 miles and a mass about 110 million billion kilograms (240 million billion lb). That makes it more than twice as big as Earth and more than three times as massive.
On Earth, people usually weigh 70 to 80 kg (154 to 176 lbs) unless they are very tall or very thin. On Jupiter, that same person would weigh about 250 kg (551 lbs). It is easy to see why they would need lots of food and water there!
It is estimated that there are 10 to 100 billion planets in the galaxy like ours. But we don't know how many of them are like Jupiter because they are too far away from us.
If you weigh 100 pounds on Earth, you would only weigh 38 pounds on Mercury. On Jupiter, 1 pound = 454.6 grams. So, your weight in Jupiter's gravity would be about 500 grams (or half a kilo).
The average male height is 69 inches (175 cm) and the average female height is 59 inches (150 cm). If everyone on Earth were reduced to our height, the world population would be reduced by 10%.
The Earth orbits the Sun at a distance of 150 million miles (250 million km) every 365 days. Because of this distance, people on Earth experience only one full rotation of the sun each year. The part of the sun's orbit that brings it closest to the Earth - called the perihelion - occurs in January, when the sun is at its position furthest from the center of the Milky Way galaxy. The part of the orbit that takes it away from us - called the aphelion - happens in July, when the sun is at its most distant point from the galaxy.
Milky Way Galaxy: There are billions of stars inside our galaxy alone. Our galaxy has hundreds of billions of stars in it.
You would weigh heavier on Jupiter than on any other planet in our solar system due to its mass. On Earth, your weight is about 70 kg (155 lb). On Jupiter it is about 1000 kg (2200 lb).
Jupiter is more than 100 times as massive as Earth. It has a mass about 1.9 x 1023 kg (4.1 x 1015 lb), almost exactly the same amount of energy as all the power plants in the world today.
The reason why Jupiter weighs so much more than Earth is because it's made of gas instead of rock. Gas is very light and space is very big, so there's no need to weigh your surroundings like on Earth. The average density of Jupiter is 1.407 grams per cm3 (17 oz per ft3), which is slightly less than water.
There are other planets in our solar system that are even more massive than Jupiter, such as Saturn which is around 99.8% hydrogen and 0.2% helium. Uranus is 84.9% hydrogen and 15.1% oxygen and Neptune is 75.9% hydrogen and 24.1% oxygen.
Titan is another huge planet in our solar system.
Because Mercury has less mass than Earth, its surface gravity is lower than Earth's. Mercury's surface gravity is only roughly 38% that of Earth's, therefore if you weigh 100 pounds on Earth, you would only weigh 38 pounds on Mercury. However, since the average weight of humans is around 150 pounds, this means that people would actually appear to be slightly underweight on Mercury.
This phenomenon was first noticed by the astronauts on board the Apollo 8 spacecraft as they passed over the far side of the Moon. They reported that everyone seemed to be walking around with a bit of a slump should about face up and smile. This is because all their body weight was concentrated in their backpacks which were not supported on Mercury. If they stood up straight, they would have collapsed under their own weight!
People can still walk on Mercury even though they appear to be underweight because their bodies are making up for the difference with muscle. Astronauts have been known to grow stronger-looking muscles to compensate for being on a weak planet like Mercury where there is no resistance training needed to be healthy.
The fact that people look underweight on Mercury does not mean that they are unhealthy. In fact, the opposite is true: people who appear to be underweight have better health prospects than those who are overweight. Health problems associated with obesity include heart disease, diabetes, and some types of cancer.