According to NASA, the surface gravitational pull on Venus is 9.5 meters per second squared, or 31 feet per second squared. The gravitational constant, G, is based on Earth's gravity and is equal to 1 on Earth, but because Venus has less gravity, G is equal to .88 on Venus.
According to Cal Tech University, since Venus and Earth are almost the same size and mass, their surface gravitational pulls are almost the same. The surface gravity on Venus is about 91 percent of the surface gravity on Earth. Therefore, if you weigh 100 pounds on Earth, you would only weigh 91 pounds on Venus.Learn More
Planets and stars differ in their mass, composition and life cycle. Stars are usually structurally simple bodies of high mass that produce energy by way of nuclear fusion of hydrogen into helium. Planets are much smaller, do not generate light and usually orbit stars.Full Answer >
Uranus is composed largely of hydrogen and helium like the other gas giants. It also has water ice, methane ice and ammonia ice. There are also tiny amounts of carbon monoxide, carbon dioxide and hydrocarbons such as ethane, acetylene, diacetylene and methylacetylene.Full Answer >
The word "planet" in Greek means "wanderer." Planets were thought to be moving against the still background of stars. The planets move, or revolve, around the sun in relatively fixed orbits.Full Answer >
The interiors of the Jovian planets, also known as gas giants, are different because of their sizes. Jupiter and Saturn, the largest of the four Jovian planets, are massive enough to compress materials into a rocky core. Uranus and Neptune exert less pressure, which causes their cores to be in an icy, liquid state.Full Answer >