05-17-2016, 11:59 AM
Noted just for fun.
Quote:http://www.space.com/32888-dying-stars-m...anets.html
“”When most stars reach old age and begin to run out fuel, they swell up to hundreds of times their normal size, engulfing planets that orbit too close. But can planets that escape this fiery demise still support life? In this state, can planets around the dying star host life? New research says yes.
In about 7.5 billion years, the sun will have begun its march to the grave and will start expanding. Eventually it will swell to about 200 times its current size. It will swallow Mercury and Venus, and make Earth uninhabitable. But currently frigid locations in the solar system, like the icy moons of Saturn and Jupiter, might become just the right temperature for life”…
…”There were other complicating factors that needed to be factored in, such as the fact that as the star loses mass, its gravitational grip on the planets is reduced. As a result, the orbit of a planet around a star will expand as the star becomes a red giant. (For this reason, the Earth will escape being engulfed by the sun, according to Kaltenegger).
Researchers have worked on the question of habitability around old stars before, but Kaltnenegger said no work has ever been done using models that can reveal details about how both the star and planets will evolve together through such a drastic change to the system.”…
- See more at: http://www.space.com/32888-dying-stars-m...iUQjC.dpuf
… whatever is true, whatever is honorable, whatever is just, whatever is pure, whatever is lovely, whatever is commendable, if there is any excellence, if there is anything worthy of praise, think about these things. Phil 4:8 (ESV)