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Is the sun heating up

Updated: 8/11/2023
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15y ago

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No, in fact it is cooling down. As it burns the hydrogen into helium, energy is released (the radiation we get from the Sun) and expands in all directions. Since heat is the measurement of energy in a system and the energy of the Sun is being bled off, the heat is reducing.

The Helium that is left after the process has a lower internal energy than the separate Hydrogen before fusion: the sun is radiating it's heat. It's a very slow process (it should take between 1 and 3 billion years) for the conversion of Hydrogen to Helium to show remarkable change in energy levels. That is, till the energy we receive on Earth begins to reduce by any substantial amount. Until the Sun dies (most likely as a Red Giant), it will slowing become cooler and cooler.

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15y ago
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11y ago

Yes

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11y ago

no.

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Q: Is the sun heating up
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