Aging Stars Could Host Earth-Like Planets in Outer Regions

Aging Stars Could Host Earth-Like Planets in Outer Regions
"When a star ages and brightens, the habitable zone moves outward and you're basically giving a second wind to a planetary system," says Ramses M. Ramirez. NASA
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The “habitable zone” is the region around a star in which water on a planet’s surface is liquid and signs of life can be remotely detected by telescopes.

That zone can shift to outer regions when stars age, according to astronomers who have modeled the locations of the habitable zones for aging stars and how long planets can stay in them.