Alien life can be found on planets with a very specific property
Finding life on a planet, or simply proving that life once existed on these distant worlds, is one of the main goals of science. Many telescopes have focused on the planets' atmospheres over the years, yet none of them have discovered life there.
Η NASA to space telescope James Webb was solely intended to search for extraterrestrial life. Scientists have developed a means of narrowing down the possible worlds that could contain potential life, and they have an approach to achieving this goal.
Right now, researchers are focusing on examining the protective ozone layer on the planets. The ozone layer protects the Earth's biosphere from the sun's dangerous ultraviolet (UV) radiation.
According to a recent study, published in the journal Nature Communication, as the universe expands, "newborn" stars become progressively richer in metals, subjecting creatures to increasingly strong ultraviolet radiation.
With these data, the scientists, therefore, found that they had been looking for them for so long aliens in "all the wrong places". As it emerged from the study, the extraterrestrial life it may be in planets with a very specific quality, which they had not considered before.
According to the findings, planets hosted by low-metallicity stars "may be more suitable for life."
The scientists found that although metal-rich stars (like our Earth's Sun) emit "substantially less UV radiation" than metal-poor stars, the surface of their planets is actually exposed to more intense UV radiation.
Therefore, this may be a factor leading to genomic damage and a threat to all life forms.