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Big swirling mass of gas began to form into the solar system
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The Earth began to form and grew by colliding with space debris
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Volcanoes emit gas forming an atmosphere
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Fossils of stromatolites were as old as 3.5 billion years
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Cyanobacteria and lynbgya had began to photosynthesise
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Earth looks mostly like what it is today
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O2 levels reached todays levels
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A type of small aerobic prokaryotic life forms was engulfed by and began to live and reproduce inside of a larger anaerobic prokaryote
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Ozone (O3) formed - protected from harmful UV rays so they could exsist on land
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An early light microscope was used by Robert Hooke to study nature. Other scientists observed from microscopes that mircoorganisms are simple in structure and are numerous and wide spread.
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Discovered that flies only come from eggs laid by other flies.
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Discovered that boiled broth became contaminated only when microoganisms from the air entered the flask.
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Discovered that contamination of the broth was due to microorganisms in the air.
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Thought the early atmosphere contained ammonia, NH3 (hydrogen gas), H2 ( water vapor), H2O, and compounds made of hydrogen and carbon. Oparin thought at high temperatures these gases might have formed simple organic compounds.
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Used to establish ages of materials like fossils.
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Used Opain's hypothesis to produce a variety of organic compunds and amino acids.
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Extensive research on the physical structures that meny have given rise to the first cells (microshperes and coacervates).
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Found that a type of RNA found in some unicellular eukaryotes is able to act as a chemical catalyst.
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Proposed that early prokaryotic cells may have developed a mutually beneficial relationship.
