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• W2109977051 endingPage "282" @default.
• W2109977051 startingPage "253" @default.
• W2109977051 abstract "Abstract Water is formed from two of the three most abundant elements in the universe and so is abundant in interstellar space, in our Solar System, and on Earth, where it is an essential compound for the existence of life as we know it. Water ice acts as a substrate and reactant in interstellar clouds of gas and dust, enabling the formation of organic compounds that are important precursors to life and that eventually became incorporated into comets and asteroids in the early Solar System. Laboratory experiments have allowed us to infer the reaction pathways and mechanisms by which some of these compounds are formed. In these reactions, water can act as an energy transfer medium, increasing product yields, or it can lower yields by diluting reaction centers. Water can also destroy organic compounds when water ice decomposes under ionizing radiation and the decomposition products attack the compounds; whether this happens depends critically on temperature and structure of the ice, whether crystalline or amorphous. Ice structure and temperature also largely determine its gas content. As the solar nebula collapsed, icy mantles on interstellar grains probably sublimated and then recondensed onto other grains, thus influencing the transport of energy, mass, and angular momentum in the disk. Icy grains also influenced the temperature structure of the disk because they influence mean disk opacity. Outside the “snow line” at 3–5 AU icy grains accreted to become part of comets and planetesimals that occupy the region of the outer planets, the Kuiper belt, and the Oort cloud. Water was acquired by the growing Earth by several mechanisms. Evidence from noble gas isotopes indicates that Earth achieved sufficient mass fast enough to capture an early H-rich atmosphere from the Solar nebula itself. Although the remnant of this primary atmosphere is now found only in the mantle, it may also reside in the core, which could contain most of the H on Earth (or none at all). The bulk silicate Earth contains only 500–1100 ppm H2O, an amount small enough to explain by “wet” accretion, although most of it probably accumulated with the latter half of Earth's mass from wetter planetary embryos originating beyond 1.5 AU. Degassing on impact delivered water to Earth's surface, where it dissolved into a magma ocean, a process that likely saved it from loss during subsequent catastrophic impacts such as the Moon-forming giant impact, which resulted in >99% loss of the noble gas inventory. Although most of Earth's water probably came from meteoritic material, the depletion on Earth of Xe relative to Kr strongly suggests a role for comets. The role of water in supporting life is an essential one on Earth and probably elsewhere, given the unusual properties of water compared with other potentially abundant compounds. Its dipolarity, high boiling point and heat of vaporization and, for ice, melting temperature; its expansion on freezing; and its solvent properties make it an ideal medium for life. Life originated early on Earth, indicating an abundance of water, nutrients, precursor molecules, substrates, and appropriate physical and chemical conditions. Life adapted quickly to (and may have originated in) extreme environments, of heat, cold, dryness, saltiness, and acidity. This adaptation to extreme conditions bodes well for the prospect of finding life elsewhere in our Solar System and in planetary systems around other stars." @default.
• W2109977051 created "2016-06-24" @default.
• W2109977051 creator A5036341129 @default.
• W2109977051 creator A5078334986 @default.
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• W2109977051 creator A5085005476 @default.
• W2109977051 date "2007-12-01" @default.
• W2109977051 modified "2023-10-02" @default.
• W2109977051 title "Water and astrobiology" @default.
• W2109977051 cites W1489332407 @default.
• W2109977051 cites W1502104862 @default.
• W2109977051 cites W1537308438 @default.
• W2109977051 cites W1559089837 @default.
• W2109977051 cites W1577625090 @default.
• W2109977051 cites W1590038490 @default.
• W2109977051 cites W1646240205 @default.
• W2109977051 cites W1866896536 @default.
• W2109977051 cites W1966022977 @default.
• W2109977051 cites W1966117968 @default.
• W2109977051 cites W1967225568 @default.
• W2109977051 cites W1968287712 @default.
• W2109977051 cites W1968443772 @default.
• W2109977051 cites W1968512468 @default.
• W2109977051 cites W1969512750 @default.
• W2109977051 cites W1969895894 @default.
• W2109977051 cites W1970851927 @default.
• W2109977051 cites W1972332876 @default.
• W2109977051 cites W1972716847 @default.
• W2109977051 cites W1973417483 @default.
• W2109977051 cites W1973634028 @default.
• W2109977051 cites W1973762117 @default.
• W2109977051 cites W1974169977 @default.
• W2109977051 cites W1974920058 @default.
• W2109977051 cites W1975650913 @default.
• W2109977051 cites W1976379176 @default.
• W2109977051 cites W1978291265 @default.
• W2109977051 cites W1980602609 @default.
• W2109977051 cites W1981099026 @default.
• W2109977051 cites W1981174654 @default.
• W2109977051 cites W1982556498 @default.
• W2109977051 cites W1985772439 @default.
• W2109977051 cites W1987149062 @default.
• W2109977051 cites W1991721741 @default.
• W2109977051 cites W1991972851 @default.
• W2109977051 cites W1992232371 @default.
• W2109977051 cites W1994762134 @default.
• W2109977051 cites W1994826023 @default.
• W2109977051 cites W1995028474 @default.
• W2109977051 cites W1995779538 @default.
• W2109977051 cites W1996697597 @default.
• W2109977051 cites W1999350744 @default.
• W2109977051 cites W2001043245 @default.
• W2109977051 cites W2002364461 @default.
• W2109977051 cites W2002613524 @default.
• W2109977051 cites W2003088084 @default.
• W2109977051 cites W2003414686 @default.
• W2109977051 cites W2006209824 @default.
• W2109977051 cites W2007318010 @default.
• W2109977051 cites W2009301896 @default.
• W2109977051 cites W2012455561 @default.
• W2109977051 cites W2014359877 @default.
• W2109977051 cites W2015452349 @default.
• W2109977051 cites W2016171921 @default.
• W2109977051 cites W2016774779 @default.
• W2109977051 cites W2016922896 @default.
• W2109977051 cites W2017630315 @default.
• W2109977051 cites W2018653605 @default.
• W2109977051 cites W2019797495 @default.
• W2109977051 cites W2020374611 @default.
• W2109977051 cites W2022375529 @default.
• W2109977051 cites W2024042184 @default.
• W2109977051 cites W2028808722 @default.
• W2109977051 cites W2031054266 @default.
• W2109977051 cites W2031131838 @default.
• W2109977051 cites W2031251030 @default.
• W2109977051 cites W2031445615 @default.
• W2109977051 cites W2032042205 @default.
• W2109977051 cites W2032186415 @default.
• W2109977051 cites W2032506058 @default.
• W2109977051 cites W2034324611 @default.
• W2109977051 cites W2034372976 @default.
• W2109977051 cites W2034973317 @default.
• W2109977051 cites W2035697154 @default.
• W2109977051 cites W2035815113 @default.
• W2109977051 cites W2036375880 @default.
• W2109977051 cites W2036728293 @default.
• W2109977051 cites W2038165393 @default.
• W2109977051 cites W2039368209 @default.
• W2109977051 cites W2043818941 @default.
• W2109977051 cites W2045458127 @default.
• W2109977051 cites W2045954828 @default.
• W2109977051 cites W2046056285 @default.
• W2109977051 cites W2046812128 @default.
• W2109977051 cites W2048719925 @default.
• W2109977051 cites W2049864768 @default.
• W2109977051 cites W2049883309 @default.
• W2109977051 cites W2050017178 @default.
• W2109977051 cites W2050066867 @default.

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