Within our Solar System, the Sun is the most massive star. This is because the mass of the star corresponds to 99.86% of the entire mass of the system.
The mountain is called Mount Olympus. It is estimated that the Mountain is 21.9 km above the average Martian surface level. By comparison, Mount Olympus is three times higher than Mount Everest.
That's what you read. Jupiter, Saturn and Neptune do not have a solid ground. Therefore, the surface of these planets is formed by dense gases and a pasty layer.
In 2004 there was an earthquake in the region near the island of Sumatra. The natural phenomenon scored 9 degrees on the Richter Scale. In view of the recorded magnitude, this was not a simple earthquake.
After what happened, NASA reported that it caused a change in the planet's rotation and shape. The Earth's flattening has decreased a fraction in 10 billion. This change caused the North Pole to change location by 2.5 centimeters, as well as a decrease in days of 2.68 microseconds.
Venus is the planet with the most volcanoes. It is stipulated that the star has more than 1,600. In addition to volcanoes, the planet is the hottest in the system, due to its greenhouse effect.