Could Life Have Started on Mars? Are We Martians?
https://arxiv.org/abs/2507.18545
https://www.science.org/doi/10.1126/sciadv.adw1280
Comments (7)
Wow looks like the conspiracy theorists may be right. lol so there are aliens ‐ they're us. And that means that life can exist everywhere in the universe.
When I hear theories about humans originating from Mars, a thought comes to mind: what if Noah’s Ark was a proto-interplanetary vessel, a Mars departure generation ship carrying a curated biosphere to seed Earth after a planetary collapse?
"When I hear theories about ..." should be "hypotheses" since it has not yet the criteria required to be called a "theory." E.g. Once Einstein's hypotheses concerning Relativity met the criteria they were then called the Theories of Special and General Relativity.
Does Earth ever get its own meteorites back?
You've probably seen an article from two decades ago (2006) calculating that the origin of life is about 7 billion years back. https://pmc.ncbi.nlm.nih.gov/articles/PMC1526419/ Which is not well received, but it does explain why "RNA life" has not persisted in some niche on Earth, because based on that timeline, Earth is not the RNA world, so to speak. Again, if we accept that timeline then we can put two bounds on the origin and spread of life: 1. This is not the RNA world (Earth is too young) 2. There are no moon flowers (Life hasn't managed to spread into all environments... yet) Oh, and the Rare Earth hypothesis, at least as originally laid out, presumes that microbial life is probably widespread, but complex life is rare. But that argument suffers from the assumption that all of the conditions it lists are necessary for complex life and does not account for others that might aid or retard its development.
You have a very interesting channel. Very interesting topics. I really want to subscribe to support but the app won’t let me, it bugs out 😂 I will try on my computer later.
Was Mars in the habitable zone back then?