"The living mounds, which measured some 15 feet (4.6 m) across and several feet high, offer a window into the earliest stage of life on Earth and potentially even ancient life on Mars, Hynek said. Preliminary observations indicate they could be stromatolites — complex communities of microbes whose excretions solidify into layers of rock — similar to those that existed during a period of Earth's history called the Archaean (4 billion to 2.5 billion years ago), when the atmosphere contained no oxygen."
Interesting report here. I remember Martian meteorite ALH84001 with perhaps tiny Martians in it. Now the giant impact model using Theia can create an early earth with reducing atmosphere where abiogenesis takes place to create early life on Earth. Did this process work like that on Mars too?
Planetary scientists simulate oxidation of iron by giant impact during atmospheric evolution of early Earth,
https://phys.org/news/2023-12-planetary-scientists-simulate-oxidation-iron.html
Ref - Oxidation of iron by giant impact and its implication on the formation of reduced atmosphere in the early Earth,
https://www.science.org/doi/10.1126/sciadv.adi6096, 15-Dec-2023. "Abstract Giant impact–driven redox processes in the atmosphere and magma ocean played crucial roles in the evolution of Earth..."
My observation. Apparently now the giant impact model using Theia is good for a reducing atmosphere created on the early earth so abiogenesis can take place. What about abiogenesis on other planets like Mars, Enceladus moon?
Interesting how a giant impact on Earth using Theia can help aid in abiogenesis taking place on Earth because of the early earth atmosphere arising after the giant impact. Does this scenario apply to other planets in the Milky Way and in our solar system too? Need a good report on how abiogenesis kicked off on Earth after the giant impact with Theia creating a reduced atmosphere and how this worked on Mars too to create tiny Martians it seems.
Facebook
Twitter
Instagram