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paul_wi11iams t1_j5pdu1z wrote

Reply to comment by cklein0001 in What are the forces on Earth’s Inner Core that change its speed? by BayRunner

> swallowed

The version I heard was the expanding sun loses mass leaving Earth beyond its grasp.

> swallowed / burned

So its changed again, having become uncertain.

and even that is ignoring options for stellar engineering (assuming our descendants even care)

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cklein0001 t1_j5pep9v wrote

Yeah, several "what's gonna happen in unfathomable timescale" options to choose from.

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Rule_32 t1_j5ut7dr wrote

>sun loses mass leaving Earth beyond its grasp

This is incorrect. The Suns expansion does not equate to mass loss. Cosmologically its mass will have not decreased that much (which is what will determine where Earths orbit is) but it'll be fusing helium into carbon which is a hotter more energetic process and so the outer layers of the star will get pushed out and the star expands. Earths orbit won't change much however the Suns radius will expand to near or fully envelop Earth.

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