Follow along with the video below to see how to install our site as a web app on your home screen.
Opmerking: This feature may not be available in some browsers.
. The presence of PH3 is unexplained after exhaustive study of steady-state chemistry and photochemical pathways, with no currently known abiotic production routes in Venus’s atmosphere, clouds, surface and subsurface, or from lightning, volcanic or meteoritic delivery. PH3 could originate from unknown photochemistry or geochemistry, or, by analogy with biological production of PH3 on Earth, from the presence of life.
https://www.nature.com/articles/s41550-020-1174-4
vishnusixclix zei:Er zijn géén microben gevonden. Er zijn tekenen van fosfine ontdekt in de hogere atmosfeer. Eén van de redenen daarvoor KAN zijn dat er microbiologisch leven dat heeft gemaakt. Maar uiteraard is net dát hetgene waar alle media keihard opspringen. De wetenschappers zelf zijn veel meer terughoudend hierover. Ze zijn vooral blij dat er nu geld kan gaan voor meer onderzoek naar en over de planeet Venus.
Scientists ___ vs ____ media
Based on the many scenarios they considered, the team concludes that there is no explanation for the phosphine detected in Venus’ clouds, other than the presence of life.
“It’s very hard to prove a negative,” says Clara Sousa-Silva, research scientist in MIT’s Department of Earth, Atmospheric and Planetary Sciences (EAPS). “Now, astronomers will think of all the ways to justify phosphine without life, and I welcome that. Please do, because we are at the end of our possibilities to show abiotic processes that can make phosphine.”
“We really went through all possible pathways that could produce phosphine on a rocky planet,” Petkowski says. “If this is not life, then our understanding of rocky planets is severely lacking.”
“Technically, biomolecules have been found in Venus’ atmosphere before, but these molecules are also associated with a thousand things other than life,” Sousa-Silva says. “The reason phosphine is special is, without life it is very difficult to make phosphine on rocky planets. Earth has been the only terrestrial planet where we have found phosphine, because there is life here. Until now.”
Je bedoelt op venus. De kans op leven in het heelal is juist héél erg groot volgens de wetenschap.vishnusixclix zei:Sowieso is de kans op leven érg klein.
makila zei:Ba wah de kans op leven in de vorm van NIET aardse microben en/of ééncellig leven is quasi 100% hé. (Ook al zijn ze officieel nog nooit gevonden).
De kans op leven zoals wij, is ook zéér groot maar niet 100% en véél zeldzamer.
Dus ja ik geloof er wel in dat op Venus microben kunnen voorkomen.
beryl zei:en dat we het dan vinden op één van de zeven andere planeten in ons zonnestelsel.