Alien life is most likely to exist in these star systems: scientists

[Kamaji]

Alien life is most likely to exist in these star systems: scientists

By Jane Herz and
Hannah Sparks   
April 19, 2023

To find extraterrestrial life, follow the trail of radiation.

Scientists in Germany believe that they have found the most likely star systems to host alien organisms.

Oxygen-rich planets hosted by stars with relatively fewer metals are more likely to be habitable for life, according to a new analysis by a team of astronomers from the Max Planck Institute for Solar System Research.

Stars with a low proportion of metals — that is, elements heavier than hydrogen and helium — are known to emit more radiation than those with a high metallicity. Yet, compared to planets attached to high-metal hosts, those orbiting low-metal stars are equipped with an even thicker ozone layer thanks to the beneficial interplay between oxygen and ultraviolet radiation, according to the study’s press release.

As observed here on Earth, a robust ozone layer is critical to shield against UV radiation, which damages DNA and thwarts the evolution of living organisms.

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Source:  https://nypost.com/2023/04/19/alien-life-is-most-likely-to-exist-in-these-star-systems-scientists/

[Smokin Joe]

Well, they aren't aliens if they are home...

I get the whole Goldilocks zone thing, and gravity, and tides, and magnetic (Van Allen) belts, and radiation, and age and stellar maturity, but how far away are these systems?

Because you take the number of light years they are away, and that's how old that look at what is going on there is.