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How many exo-earths orbiting white dwarfs might actually be out there?
“That’s a great unknown.” Lisa Kaltenegger (@KalteneggerLisa)https://www.forbes.com/sites/brucedorminey/2020/04/30/how-to-detect-signs-of-life-from-planets-circling-dying-stars/#581fdab6b2c1 …
But is it really likely that an exo-earth that has undergone the ravages from an expanding Red Giant might still harbor life?
"We don't know if life could survive the red giant phase and even more importantly the death of its star." Lisa Kaltenegger (@KalteneggerLisa)
Will any planets we find around white dwarfs actually be planets that have formed after the star has already passed through its Red Giant phase? “The big question is whether you could maintain or re-deliver water to such planets in either scenario." Lisa Kaltenegger
Will any planets we find around white dwarfs actually be planets that have formed after the star has already passed through its Red Giant phase? “And if there are signs of life on such planets, it would tell us about the incredible tenacity of life.” Lisa Kaltenegger
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