The Sun is a star that provides light and heat to Earth. It would take 17 years to travel to the Sun because it is very hot and could cause skin cancer if exposed to it for too long. The Sun powers Earth by enabling plant growth and allows people to be healthy, though if sick its materials can be used for medicine. While the closest star to Earth, the Sun is not the largest star as there are bigger ones farther away. The Sun lights our world, powers our planet, and helps plants and food grow to keep people strong.