Sun is a massive ball of hot gas that provides heat and light to Earth. It generates energy through nuclear fusion, is the center of our solar system, and sustains life on our planet.

The sun will continue to shine for about 5 billion years as it fuses hydrogen into helium. After that, it will enter the red giant phase and eventually become a white dwarf, providing light and energy for billions of years more.

In reality, there are billions of suns in our galaxy alone. Each star like our sun has its own system of planets. This vast universe full of suns inspires curiosity and wonder in those who seek to explore and understand it.

The sun is essential for humans because it provides us with vital vitamin D, regulates our sleep patterns, boosts our mood, and supports overall wellbeing. Remember to enjoy the sun safely!

Plants would not be able to photosynthesize, leading to a lack of food for organisms. The Earth's temperature would drop significantly. Ultimately, biodiversity would decrease. However, life finds a way to adapt and thrive in different conditions.