mass

astronomy – How do stars evolve over time?

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Stellar Evolution: The Physics of Cosmic Lifecycles Stars are not fixed beacons of light. They are high-pressure engines engaged in a constant tug-of-war between the inward crush of gravity and the outward push of nuclear fusion. To track how a star evolves, you must look at its birth mass as a predetermined destiny. Think of … Read more

astronomy – What is dark matter and how do we know it exists?

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Decoding Dark Matter: The Invisible Engine of the Universe When you look at the night sky, you see stars and galaxies. However, that visible light accounts for less than 5% of the universe. The vast majority of our cosmos is composed of something we cannot see: dark matter. It is not just a scientific curiosity, … Read more