Without the Sun, our planet - and life on it - would not exist. As our nearest star, the Sun is also important for astronomers and still presents many puzzles. Philip Judge explains what we know about the Sun's structure and evolution, solar phenomena, and the impact of solar activity on the Earth.

• Explains how the Sun works including its physics, and structure, origins, and future evolution
• Considers the importance of the Sun for life on Earth, and its impact on our climate
• Shows how studying the Sun has led to remarkable discoveries in astronomy and basic physics
• Discusses what we still have yet to discover about our nearest star
• Part of the Very Short Introductions series - over ten million copies sold worldwide