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Old 06-13-2016, 04:41 AM
Quartz Quartz is offline
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Join Date: Jan 2003
Location: Home of the haggis
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Quote:
Originally Posted by eburacum45 View Post
When the Sun leaves the Main sequence it will star losing mass comparatively rapidly, due to a vastly increased solar wind. Some estimates say that this loss will be enough to move the Earth's orbit out beyond the edge of the Sun's red giant phase; others aren't so sure.
http://www.astronomy.ohio-state.edu/.../vistas97.html
By that stage the Earth will have lost its magnetic field due to cooling of the core, so it may no longer have an atmosphere.