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The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...
The earliest evidence for life on Earth includes: 3.8 billion-year-old biogenic hematite in a banded iron formation of the Nuvvuagittuq Greenstone Belt in Canada; [30] graphite in 3.7 billion-year-old metasedimentary rocks in western Greenland; [31] and microbial mat fossils in 3.48 billion-year-old sandstone in Western Australia.
Life on Our Planet is an American television nature documentary series released on Netflix and produced by Amblin Television and Silverback Films. Executive-produced by Steven Spielberg and narrated by Morgan Freeman, the series focuses on the evolutionary history of complex life on Earth. Upon its release, the series received generally mixed ...
All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA. ... shared chirality of the almost-universal set of 20 amino acids and use of ATP as a common energy currency. As ...
A new study suggests that cloud-to-ground lightning likely provided the necessary material for the first organisms on Earth to form. All Life on Earth Might Have Started From Lightning, Scientists Say
The story is set in an undatable post-apocalyptic world, somewhere in present-day Morocco Film 1977 War Damnation Alley [45] A surviving American ICBM crew sets out across the U.S. in an armored vehicle in search of survivors in Albany, New York – based on the novel by Roger Zelazny: Film 1977 War Wizards: Ralph Bakshi
In his book The Origin of Life, [29] [30] he proposed (echoing Darwin) that the "spontaneous generation of life" that had been attacked by Pasteur did, in fact, occur once, but was now impossible because the conditions found on the early Earth had changed, and preexisting organisms would immediately consume any spontaneously generated organism.
Beyond the Solar System, the region around another main-sequence star that could support Earth-like life on an Earth-like planet is known as the habitable zone. The inner and outer radii of this zone vary with the luminosity of the star, as does the time interval during which the zone survives.