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  • ...5= Colin R. |title= Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits |url= https://www.nature.com/articles/ncomms15263 |date= 9 ...dred million years (200 [[Ma (unit)|Ma]]) after the Earth was formed, in a hot {{convert|100|°C|°F}} reducing environment, and the pH of about 5.8 rose ra ...
    282 KB (38,179 words) - 13:31, 6 September 2018
  • | launch_site = [[Cape Canaveral Air Force Station Space Launch Complex 17|Cape Canaveral AFS SLC-17A]] During descent, the lander used three clusters of pulse modulated engines, each containing four 266-newton hydrazine monopropellant thrusters. Altit ...
    42 KB (5,984 words) - 15:20, 25 September 2018
  • Excluded from search engines Well, fresh water is likely to be rare on present day Mars. Usually the air pressure is so low that it is not stable even at just above freezing, at 0& ...
    68 KB (10,859 words) - 21:01, 6 September 2020
  • {{Commons category|Stirling engines}} [[Category:Hot air engines]] ...
    1 member (1 subcategory, 0 files) - 16:54, 8 September 2018