The document provides various facts about the universe and its wonders. It discusses how the size of the Sun affects the Earth's climate. It notes that the Sun travels at 720,000 km/hr and winds on Neptune blast at 2,000 km/hr. The temperature difference between Mercury's day and night sides can be 1,000°C. Carbon forms the basis of life on Earth and the atmosphere protects the Earth from freezing temperatures in space. The universe has been constantly expanding since the Big Bang.