• Thumbnail for Earliest known life forms
    The earliest known life forms on Earth may be as old as 4.1 billion years old (or Ga) according to biologically fractionated graphite inside a single...
    70 KB (6,978 words) - 05:58, 19 March 2024
  • Outline of biology Earliest known life forms Extraterrestrial life Hypothetical types of biochemistry Life Marine life Organism "life form". World English...
    11 KB (767 words) - 10:32, 20 February 2024
  • Thumbnail for Life
    are essential for all known forms of life. Most DNA molecules consist of two biopolymer strands coiled around each other to form a double helix. The two...
    109 KB (10,590 words) - 21:49, 23 April 2024
  • Thumbnail for Extraterrestrial life
    extraterrestrial life has yet been conclusively detected. Such life might range from simple forms such as prokaryotes to intelligent beings, possibly bringing...
    115 KB (13,286 words) - 02:20, 28 April 2024
  • Thumbnail for Abiogenesis
    Abiogenesis (redirect from Origin of life)
    Formation, Glacier National Park, dated 3.5 Gya, placing them among the earliest life-forms Modern stromatolites in Shark Bay, created by photosynthetic cyanobacteria...
    193 KB (19,790 words) - 02:41, 28 April 2024
  • Dark forest hypothesis (category Extraterrestrial life)
    would view any other intelligent life as an inevitable threat and thus destroy any nascent life that makes itself known. As a result, the electromagnetic...
    13 KB (1,374 words) - 04:50, 27 April 2024
  • Thumbnail for Hypothetical types of biochemistry
    on life's limiting conditions in 2007. Abiogenesis Astrobiology Carbon chauvinism Carbon-based life Earliest known life forms Extraterrestrial life Hachimoji...
    80 KB (8,208 words) - 05:03, 18 April 2024
  • Life on Earth may refer to: Life Earliest known life forms Evolutionary history of life Abiogenesis Life on Earth (film) (La Vie Sur Terre), a 1998 Malian...
    1 KB (161 words) - 10:41, 1 March 2022
  • Thumbnail for Formic acid
    hydrogen-bonded formic acid molecules. Formic acid forms a high-boiling azeotrope with water (107.3 °C; 77.5% formic acid). Liquid formic acid tends to...
    38 KB (3,909 words) - 11:41, 25 March 2024
  • life (in the form of placozoans and primitive sponges such as Otavia) has existed at least since the Tonian period and the earliest known life forms (in...
    59 KB (6,061 words) - 10:45, 19 April 2024