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- The Sun formed about 4.6 billion years ago in a giant, spinning cloud of gas and dust called the solar nebula. As the nebula collapsed under its own gravity, it spun faster and flattened into a disk. Most of the nebula's material was pulled toward the center to form our Sun, which accounts for 99.8% of our solar system’s mass.
science.nasa.gov/sun/facts/
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Oct 18, 2023 · What is the Sun made of? The Sun is primarily composed of two elements: hydrogen and helium. Hydrogen makes up about 74 percent of its mass, while helium accounts for some 24 percent.
The Sun is made of super-hot, electrically charged gas called plasma. This plasma rotates at different speeds on different parts of the Sun. At its equator, the Sun completes one rotation in 25 Earth days.
Dec 12, 2023 · Life on Earth will end. If the sun were more massive – estimates vary, but at least several times more massive – it would explode as a supernova. So … no supernova. But what? What happens...
Jan 30, 2023 · In about 5.4 to 6.4 billion years, the Sun will run out of hydrogen, ending its main sequence phase, and causing drastic changes to the sun and the solar system. The red giant phase As hydrogen is fused to make helium, the Sun’s supply of hydrogen dwindles.
Jan 27, 2022 · The sun is a big ball of gas and plasma, but what is the sun made of exactly? Most of the gas — around 92% — is hydrogen, according to NASA. It is converted into energy in the sun's core.
Nov 12, 2022 · The Sun is about 4.6 billion years old – gauged on the age of other objects in the Solar System that formed around the same time. Based on observations of other stars, astronomers predict it will reach the end of its life in about another 10 billion years.
Jan 27, 2022 · Most of the material was hydrogen and helium, but some of it was made up of leftover remnants from the violent deaths of stars. About 4.5 billion years ago, waves of energy traveling...
