It would appear that science generally accepts that the sun will eventually become a red giant, consuming the planets closest to it.
Red Giant Stars: Facts, Definition & the Future of the Sun | Space
Which leaves me with the following question:
The planets of the solar system stay in orbit because of the sun's gravity. Why would it be concluded that as the sun expands that the gravitational pull would remain constant and the planets would remain in their orbit. Wouldn't it stand to reason that as the sun expands, the sun's gravity would weaken resulting in orbit of the planets expanding outward?
Why or why not?
Red Giant Stars: Facts, Definition & the Future of the Sun | Space
Which leaves me with the following question:
The planets of the solar system stay in orbit because of the sun's gravity. Why would it be concluded that as the sun expands that the gravitational pull would remain constant and the planets would remain in their orbit. Wouldn't it stand to reason that as the sun expands, the sun's gravity would weaken resulting in orbit of the planets expanding outward?
Why or why not?