The Whole History of the Earth and Life || Part6 || Third Stage of the Evolution of Life ||

“The Whole History of the Earth and Life” is a documentary which portrays the birth of the solar system, the birth of the Earth, and the emergence and evolution of life on Earth depicted through our latest research activities. Chapter 6: Third Stage of the Evolution of Life 2.3 billion years ago, the Milky Way Galaxy collided with a dwarf galaxy resulting in a supernova explosion that produced abundant cosmic rays. Due to the degeneration of the heliosphere, cosmic rays struck the Earth, promoting the formation of clouds which eventually enveloped the Earth Due to the thick cloud envelope, the Earth experienced global glaciation, called the Snowball Earth, which caused global mass extinction. However, some Prokaryotes survived the Snowball Earth to evolve into larger life as an endosymbiotic system. At last, eukaryotes appeared. Supported by: Hadean Bioscience Project Grant-in-Aid for Scientific Research on Innovative Areas by the Ministry of Education, Culture, Sports, Science and Technology ELSI Executive producer: Shigenori Maruyama Production: LiVE Supervising director: Shigenori Maruyama Producer: Ken Kurokawa Director: Hiromitsu Kohsaka Script Editor and Narrator: Jeff Gedert