Never heard of Archaea before. Interesting articles elsewhere.
Archaea resemble bacteria in that they have no nucleus or organelles. However, their genome is arranged differently, and some of their chemistry is distinct from bacterial chemistry. No known diseases are caused by archaea, although they are found everywhere.
They are fascinating to study. I have been learning as much as I can since I discovered astrobiology. They have sort of become my passion. My problem with the way science has treated the study is that they stick them in niches and don’t recognize that they literally fill the universe, even what they consider empty space. There is no empty space. Nowhere.
Archaea. Reminds me of Michael Crichton’s last book Micro.