Galaxy Quotes (84 quotes)
What Is the Sun Made Of and When Will It Die?
Like any star in its prime, the sun consists mainly of hydrogen atoms fusing two by two into helium, unleashing immense energy in the process. The more metallic a star, the more opaque it is since metals absorb radiation , and how opaque it is in turn relates to its size, temperature, brightness, life span and other key properties. Twenty years ago, astronomers thought they had the sun sorted. Direct and indirect ways of inferring its metallicity both gauged the sun as approximately 1. That is, astronomers should be able to use the helioseismological measurements to calculate the depth of an important boundary layer in the sun where radiation gives way to convection.
The Sun , or Sol ,  is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma ,   with internal convective motion that generates a magnetic field via a dynamo process. Its diameter is about 1.
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Why Cant We Find Planet Nine?
The Sun has always served as our nearest laboratory in space, telling us more about the early universe and its makeup every time we study it in greater detail. We our Sun, Earth, and selves are the products of everything that happened before our creation. The initial event, the Big Bang To figure out the whole story of where we came from and how things got to be the way they are, though, we must turn to the stars that made us and what made them. A reduced history of the universe In the beginning, there was hydrogen. Just 3 minutes after the Big Bang, hydrogen atoms protons and neutrons collided to create helium and a little lithium.
The sun is a big ball of gas and plasma. Most of the gas 91 percent is hydrogen. It is converted into energy in the sun's core. The energy moves outward through the interior layers, into the sun's atmosphere, and is released into the solar system as heat and light. In the sun's core, gravitational forces create tremendous pressure and temperatures.