Wednesday, 14 January 2026

How Stars Are Born Cosmic Origins



 
How Stars Are Born Cosmic Origins

Stars are born deep within vast clouds of gas and dust known as nebulae—the cosmic nurseries of the universe. Over millions of years, gravity pulls regions of these clouds together, causing them to collapse and heat up. As the material condenses, a dense core forms at the center, called a protostar. When the temperature and pressure in the core become intense enough, nuclear fusion ignites, converting hydrogen into helium and releasing enormous energy. This moment marks the birth of a star, whose light and heat can shape surrounding space, trigger the formation of new stars, and influence the evolution of galaxies themselves.

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