• A biosignature (sometimes called chemical fossil or molecular fossil) is any substance – such as an element, isotope, molecule, or phenomenon – that provides...
    84 KB (8,813 words) - 15:07, 17 July 2024
  • Thumbnail for 61 Cygni
    Groombridge 1618, and HD 156026 may be particularly good targets for future biosignature searches,' said Arney. Wikimedia Commons has media related to 61 Cygni...
    50 KB (5,255 words) - 11:51, 22 June 2024
  • Thumbnail for Phosphine
    Zhuchang; Hu, Renyu; Bains, William (11 October 2019). "Phosphine as a Biosignature Gas in Exoplanet Atmospheres". Astrobiology. 20 (2) (published February...
    39 KB (3,616 words) - 15:30, 18 July 2024
  • Thumbnail for Assembly theory
    in a fragmentation tandem mass spectrometry instrument to search for biosignatures. The theory was extended to map chemical space with molecular assembly...
    18 KB (2,072 words) - 22:22, 15 June 2024
  • Thumbnail for Hycean planet
    non-hycean planets, thus making detection of biosignatures easier. Hycean worlds could be investigated for biosignatures by terrestrial telescopes and space telescopes...
    22 KB (2,167 words) - 23:34, 21 June 2024
  • Thumbnail for K2-18b
    illustrating that hydrogen is no impediment to life. However, a number of biosignature gases used to identify the presence of life are not reliable indicators...
    41 KB (4,751 words) - 06:54, 27 May 2024
  • Thumbnail for Iron-oxidizing bacteria
    extracellular stalk-ribbon structure rich in iron, known as a typical biosignature of microbial iron oxidation. These structures can be easily detected...
    32 KB (3,790 words) - 21:05, 15 March 2024
  • possible 2450 Ma red alga from the Kola Peninsula, 1650 Ma carbonaceous biosignatures in north China, the 1600 Ma Rafatazmia, and a possible 1047 Ma Bangiomorpha...
    33 KB (3,523 words) - 14:06, 1 July 2024
  • telescopic investigations and deployed probes, searching for water, chemical biosignatures in the soil and rocks at the planet's surface, and biomarker gases in...
    205 KB (19,932 words) - 17:44, 12 July 2024
  • Thumbnail for Oxygen
    for extraterrestrial life oxygen is a strong biosignature. That said it might not be a definite biosignature, being possibly produced abiotically on celestial...
    114 KB (11,791 words) - 13:20, 17 July 2024
  • Thumbnail for Europa (moon)
    including an impactor in combination with a thermal drill to search for biosignatures that might be frozen in the shallow subsurface. Another proposal put...
    130 KB (12,750 words) - 15:02, 26 June 2024
  • Thumbnail for Life
    enhance human health and the environment. Biology, the study of life Biosignature Carbon-based life Central dogma of molecular biology History of life...
    107 KB (10,463 words) - 11:30, 18 July 2024
  • Thumbnail for Astrobiology
    environments in the Solar System and beyond, the search for planetary biosignatures of past or present extraterrestrial life, and the study of the origin...
    109 KB (11,211 words) - 16:43, 16 July 2024
  • Andreas; Kooijman, Ellen; Kielmann-Schmitt, Melanie (3 June 2021). "Biosignatures of ancient microbial life are present across the igneous crust of the...
    97 KB (10,225 words) - 23:34, 20 July 2024
  • Thumbnail for Mineral
    for past or present life on Mars. Furthermore, organic components (biosignatures) that are often associated with biominerals are believed to play crucial...
    109 KB (13,007 words) - 16:14, 20 July 2024
  • Thumbnail for Fossil
    fossils. Some fossils are biochemical and are called chemofossils or biosignatures. Gathering fossils dates at least to the beginning of recorded history...
    109 KB (11,337 words) - 13:36, 15 July 2024
  • Thumbnail for Photosynthesis
    of purple retinal pigments on Earth and implications for exoplanet biosignatures". International Journal of Astrobiology. 20 (3): 241–250. arXiv:1810...
    110 KB (11,795 words) - 22:17, 12 July 2024
  • Thumbnail for Vanadium
    discrete vanadium accumulations on Mars could be a potential microbial biosignature when used in conjunction with Raman spectroscopy and morphology. All...
    74 KB (8,465 words) - 06:28, 13 July 2024
  • view of a gene as an aperiodic crystal, provides a so-called "agnostic biosignature", a sign of life that does not presuppose any biochemistry. In other...
    30 KB (3,326 words) - 22:14, 8 April 2024
  • Thumbnail for Sandstone
    horizontality Provenance Sedimentary record Sedimentology Stratigraphy Rock cycle calcium silica carbonate-silicate Paleolimnology Biosignature  Category v t e...
    35 KB (3,935 words) - 22:57, 14 June 2024
  • hypothesis Related topics Ancient astronauts Astrobiology Astroecology Biosignature Brookings Report Exotheology Extraterrestrials in fiction Extremophile...
    14 KB (1,483 words) - 07:09, 21 July 2024
  • Thumbnail for Titan (moon)
    The Cassini–Huygens mission was not equipped to provide evidence for biosignatures or complex organic compounds; it showed an environment on Titan that...
    165 KB (15,990 words) - 17:26, 19 July 2024
  • Thumbnail for James Webb Space Telescope
    atmosphere, allowing astronomers to determine whether or not the methane is a biosignature. Webb orbits the Sun near the second Lagrange point (L2) of the Sun–Earth...
    214 KB (19,857 words) - 03:37, 18 July 2024
  • Thumbnail for Icebreaker Life
    ice-cemented ground in the northern plains to conduct a search for biosignatures of current or past life on Mars. The science goals for Icebreaker Life...
    27 KB (3,025 words) - 17:07, 24 April 2024
  • Thumbnail for Abiogenesis
    Astrobiology: Records of Life on Earth and the Search for Extraterrestrial Biosignatures. Cellular Origin, Life in Extreme Habitats and Astrobiology. Vol. 12...
    203 KB (21,018 words) - 04:01, 21 July 2024
  • Thumbnail for Europa Clipper
    assessing the release of an additional 250 kg (550 lb) probe called Biosignature Explorer for Europa (BEE), that would have been equipped with a basic...
    98 KB (9,098 words) - 15:48, 13 July 2024
  • proposed deep space fleet of space telescopes designed to search for biosignatures of life in the atmospheres of exoplanets. Daniel Apai, lead astronomer...
    8 KB (716 words) - 20:19, 18 November 2023
  • Thumbnail for Drake equation
    proposed a revised equation that focuses on the search for planets with biosignature gases. These gases are produced by living organisms that can accumulate...
    73 KB (8,490 words) - 17:50, 13 July 2024
  • Thumbnail for Sedimentary rock
    horizontality Provenance Sedimentary record Sedimentology Stratigraphy Rock cycle calcium silica carbonate-silicate Paleolimnology Biosignature  Category v t e...
    63 KB (7,683 words) - 08:39, 25 June 2024
  • hypothesis Related topics Ancient astronauts Astrobiology Astroecology Biosignature Brookings Report Exotheology Extraterrestrials in fiction Extremophile...
    23 KB (2,820 words) - 06:05, 29 May 2024