It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared …

Apr 22, 2025 · The Latin word for Sun is “sol,” which is the main adjective for all things Sun-related: solar. Helios, the Sun god in ancient Greek mythology, lends his name to many Sun …

Feb 2, 2024 · The sun is an ordinary star, one of about 100 billion in our galaxy, the Milky Way. The sun has extremely important influences on our planet: It drives weather, ocean currents, …

The Sun is the engine behind much of Earth’s environment, providing energy for everything from ocean currents and weather patterns to the plants and algae that form the base of many food …

4 days ago · Sun - Evolution, Structure, Radiation: The Sun has been shining for 4.6 billion years. Considerable hydrogen has been converted to helium in the core, where the burning is most …

The Sun is the closest star to Earth and is the center of our solar system. Learn about fun Sun facts.

Aug 12, 2021 · Our Sun is a G-type star. Its color is white, although it tends to appear yellow or red when seen through the filter of Earth ’s atmosphere. G-type stars spend about 10 billion …

Nov 12, 2025 · The sun produced its strongest solar flare of 2025, an X5.1-class eruption from sunspot AR4274 triggering severe radio disruptions across continents. The major event …

May 12, 2025 · The Sun is a middle-aged star that shines brightly and supports life on Earth. The Sun, a yellow dwarf, is not very massive compared to larger stars like Betelgeuse. The Sun …

Nov 25, 2025 · The Sun is the star at the heart of our solar system. Its gravity holds the solar system together, keeping everything — from the biggest planets to the smallest bits of debris …