Galaxy The universe is a large open space is made up of billions of galaxies, stars and more. Our galaxy is called the Milky Way. Our solar system, including Sun, the planets and their moons, only a small part of the Milky Way. Q How did the universe? A universe that is not more than 15 billion yea... Read More
Stars A star is a giant ball of gas and dust that are also heat and light. If gas is the recording star, dies. A star can live for millions or even billions of years depending on its size. Each galaxy in the universe is composed of billions of stars. Q: What is a proto-star? A star is born in clouds... Read More
Planet Hot Mercury is the planet closest to the sun is also very small – about the size of the Moon from Earth. If the name of the Roman messenger of God, because he moves very quickly. Q Why is mercury cold, but it is the closest planet to the sun? Unlike Earth, Mercury is surrounded by a thi... Read More