Massive stars begin carbon burning after they run out of helium.
carbon burning
idiomThe nucleosynthesis process, in stars of greater than 8 solar mass that have exhausted their helium supply, in which carbon is converted to neon, sodium, magnesium and other elements.
When a star reaches the end of its life, the core temperature rises enough to start carbon burning.
In the final evolutionary stages of a high-mass star, carbon burning facilitates the synthesis of heavier elements like neon and magnesium.
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are your ears burning
Asked of somebody who was not present but was the topic of discussion.
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book burning
Any mass destruction, removal, or recalling of books, motion pictures, broadcasts, or electronic works as a form of censorship, especially motivated by religious or political objections to the material.
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burning question
An important and pertinent question that urgently requires an answer.
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ears are burning
Being the topic of discussion in another place; or sensing that this is happening.
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hydrogen burning
The nucleosynthesis process, in stars of less than 1.2 solar mass, in which hydrogen is converted to helium, deuterium and some lithium.
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keep the home fires burning
To maintain daily routine and provide the necessities of life in a home or community.
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oxygen burning
The nucleosynthesis process, subsequent to carbon burning, in which neon disintegrates to oxygen which subsequently fuses to form silicon, phosphorus sulfur and other elements of atomic number up to 40.
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two lamps burning and no ship at sea
Said of an unwisely or overly extravagant person.