Infographic detailing the Sun's core, radiative zone, convection zone, and surface layers.

- The Sun is the center of our solar system, making up about 99.8% of its mass.
- It is a yellow dwarf star, classified as G2V, with a surface temperature of about 5,500°C and a core temperature of 15 million°C.
- The Sun’s composition is mostly hydrogen (74%) and helium (24%), with trace amounts of heavier elements.
- Energy is generated in the core through nuclear fusion, converting hydrogen into helium and releasing vast amounts of energy.
- This energy travels outward through radiation and convection zones before reaching the photosphere, where it is emitted as light and heat.
- The Sun’s magnetic field drives solar activity like sunspots, flares, and coronal mass ejections, which can affect Earth’s magnetosphere and cause auroras.
- Solar wind, a stream of charged particles, continuously flows from the Sun and interacts with planetary atmospheres.
- The Sun formed about 4.6 billion years ago from a collapsing cloud of gas and dust and will remain stable for another 5 billion years before evolving into a red giant.
- Studying the Sun helps scientists understand stellar evolution, space weather, and the conditions necessary for life on Earth.
- NASA and other space agencies monitor the Sun using satellites like SOHO and SDO to predict solar storms and protect technology on Earth and in space.