Our solar system is made up of the sun, eight planets, moons, asteroids, and comets. Each planet is unique. Mercury is the smallest and closest to the sun, while Jupiter is the largest. Earth is the only known planet with life. Scientists use telescopes and spacecraft to study space and learn about its mysteries. The solar system formed over 4.5 billion years ago from a cloud of gas and dust. Understanding space helps us explore questions about life, time, and the universe. It also inspires future missions to Mars and beyond.