Stars rely on multiple methods of energy transport to carry the energy produced in their cores out into space. The process known as (hint: one word) relies on hotter matter being less dense and thus rising above cooler matter which is more dense and falls down. As the hotter matter rises, it cools due to its surroundings and emits energy in the process. Likewise, the cooler matter falling closer to the core gets heated up by absorbing new energy and becomes the new hot matter that continues this cycle. The process known as (hint: one word) relies on energy being emitted by matter in a random direction and that energy taking a "random walk" bouncing from nearby atom to nearby atom that eventually carries the energy outwards away from the core. This process is incredibly slow and results in energy produced in the core of a star taking upwards of thousands of years to reach the star's surface.
Stars rely on multiple methods of energy transport to carry the energy produced in their cores out into space. The process known as (hint: one word) relies on hotter matter being less dense and thus rising above cooler matter which is more dense and falls down. As the hotter matter rises, it cools due to its surroundings and emits energy in the process. Likewise, the cooler matter falling closer to the core gets heated up by absorbing new energy and becomes the new hot matter that continues this cycle. The process known as (hint: one word) relies on energy being emitted by matter in a random direction and that energy taking a "random walk" bouncing from nearby atom to nearby atom that eventually carries the energy outwards away from the core. This process is incredibly slow and results in energy produced in the core of a star taking upwards of thousands of years to reach the star's surface.
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