An unprecedented study in the ‘Monthly Notices of the Royal Astronomical Society’ presents a fascinating hypothesis: the existence of alien life analogous to dinosaurs on other planets.
Searching for signs of prehistoric life
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This theory is based on the search for elements that were common during the age of dinosaurs, but are not present on Earth today.
The role of oxygen is especially emphasized, as its levels were approximately 30% in the past, compared to 21% today. This substantial difference is seen as a factor that could have driven the dominance of dinosaurs.
Therefore, the discovery of similar oxygen levels on distant planets could suggest a suitable habitat for dinosaur-like beings.
The research co-written by Lisa Kaltenegger addresses the feasibility of locating these lives, based on the analysis of Earth's light as a model. Kaltenegger highlights that this analysis was more distinctive in earlier periods on Earth, which would increase the likelihood of identifying evolved life forms.
The study directs its efforts to detect signs of the Phanerozoic stage on other planets, crucial for the emergence of species such as dinosaurs. Rebecca Payne, from Cornell University and lead author, highlights the importance of the Phanerozoic in the history of the evolution of complex life on Earth.
Kaltenegger suggests that the discovery of planets with similar characteristics, especially with high concentrations of oxygen, could facilitate the discovery of previously unseen life forms, potentially including dinosaurs unknown.
