Although they are quite dissimilar in almost every way, the Earth and Neptune do share some similar qualities such as gravity, color and orbit. With a gravitational pull that is only 14-percent stronger than the Earth's,... More »

Neptune has an average diameter of 30,598 miles, which is approximately almost four times Earth's diameter. In terms of mass, Neptune weighs approximately 102 trillion trillion kilograms, making it 17 times heavier than ... More »

At its "surface," Neptune has a gravitational acceleration only 14 percent stronger than is felt on Earth. Though Neptune is 17 times more massive than Earth, it has a diameter 3.8 times higher and is therefore considera... More »

One year on Neptune is equal to around 165 Earth years or 60,190 Earth days, which is the amount of time it takes the planet to complete its orbit around the sun. Days on Neptune last about 16 hours, which is 8 hours les... More »

It took the Voyager 2 spacecraft a total of 12 years to get from Earth to Neptune. However, the exact amount of time required to travel to Neptune depends on the path and where the planets are in their orbits. More »

According to Universe Today, the most distinct similarity between the Earth and Saturn is gravity. While the mass of the two planets differs incredibly, the gravity of Saturn works in the same way as the gravity of Earth... More »

The hottest Neptune ever gets at its surface, which is defined as the point at which its thick atmosphere is at the same pressure as the Earth's atmosphere at sea level, is -296 F. These temperatures are found at the pol... More »