The Scale of the Universe from Big to Small (youtube) The Scale of the Universe from Small to Big (youtube) NASA Astronomy Picture of the Day (APOD) The Scale of the Universe - Interactive (manual control scale) Sizes (nano) Stars and Galaxies started to form.
Reionization marks the point at which the hydrogen in the Universe became ionized.
A major extinction, the Kellwasser event, occurred at the boundary that marks the beginning of the last phase of the Devonian period, the Famennian faunal stage (the Frasnian–Famennian boundary), about 375–360 million years ago.
Overall, 19% of all families and 50% of all genera became extinct. Unicellular Organisms developed into Multicellular Organisms. Algae Dinosaurs Evolved and lived for 180 Million years (over 700 types).
Protein Domain is a conserved part of a given protein sequence and (tertiary) structure that can evolve, function, and exist independently of the rest of the protein chain. Prior to the Cambrian explosion, most organisms were simple, composed of individual cells occasionally organized into colonies.
Over the following 70 to 80 million years, the rate of diversification accelerated by an order of magnitude and the diversity of life began to resemble that of today.
Ion is an Atom or a molecule in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charge.(3.9 Billion Years since the Birth of Earth, and 2.9 Billion Years since Microorganisms Formed)The earth was completely covered in Ice.Snowball Earth Choanoflagellate are a group of free-living unicellular and colonial flagellate eukaryotes considered to be the closest living relatives of the animals.Both the start and end of the period are marked by major extinction events.Earth had 1 Continent, mostly desert, no broad leaf trees, no flowers, Earth spun faster, moon was closer.
Galaxy z is 13.1 billion years old, only about 700 million years younger than the universe. That was when the Moon Formed, the Moon was twice as close then it is now causing 10,000 ft. (1.5 Billion Years since the Birth of Earth) - 2.4 billion years ago, oxygen in the atmosphere suddenly increased by about 10,000 times in just 200 million years.