/sci/ - Science & Math

>>12121601
Phosphane/Phosphine, PH3. There’s no other plausible mechanism to explain it.

>>12121609
t. retard

>>12121623
that process would be very slow and wouldn't yield the 20 ppb the paper claims to have found

>>12121609
...
upset i won't be able to use this image anymore when talking about this
>>12121623
thank you. I barely passed organic chem but just looking at the structure nothing stuck out as being something only a delicate series of enzymes could produce. Reminded of distillates produced when i worked at an old chemical plant so this makes sense in my small and feeble mind.

If they were showing evidence of something like pic related there would be cause for " concern "

>>12121639
whats slow over a few billion years tho?

>>12121623
Screenshotting dumb shit doesn’t make it less ignorant, and regurgitating shit you know nothing about makes you look like an asshole

>>12121681
>I have no counterargument so I'll just ad hom and hope no one notices

>>12121623
>The presence of even a few parts per billion of PH3 is completely unexpected for an oxidizing atmosphere...
>The only measured values of atmospheric phosphorus on Venus comes from Vega descent probes, which were only sensitive to phosphorus as an element, so its chemical speciation is not known.
>No phosphorus species have been reported at the planetary surface.

>>12121686
Delete your shitty idiot screenshot and quit spreading garbage just because it affirms your moronic biases

>>12121686
>The bulk of any phosphorus present in Venus’ atmosphere or surface is expected as oxidized forms of phosphorus, for example, phosphates. Considering such forms, and adopting Vega abundance data(the highest inferred value, most favourable for PH3 production),we calculate whether equilibrium thermodynamics under conditions relevant to the Venusian atmosphere, surface and subsurfacecan provide ~10 ppb of PH3. (We adopt a lower-bound adequatelyfitting the JCMT data, to find the most readily achievable thermodynamic solution.) We find that PH3 formation is not favouredeven considering ~75 relevant reactions under thousands of conditions encompassing any likely atmosphere, surface or subsurfaceproperties (temperatures of 270–1,500 K, atmospheric and subsurface pressures of 0.25–10,000 bar, wide range of concentrations of reactants). The free energy of reactions falls short by anywhere from 10 to 400kJ mol-1 (see “Potential pathways to PH3 production”)

>>12121639
>>12121623
right or wrong this dosnt seem special enough to definitively point towards evidence of life. Seems like something that could be produced in a planet sized distalate column imho

>>12121703
>nooooo it can only be the hecking alienerinos
>or extraterrestrial bacteriainos
>noooo

>>12121721
is there lightning on venus? maybe they didnt facto that in
which also gives me an idea for hydrocarbon cracking on a large scale. If yall patent it first the money is yours

>>12121746
>hydrocarbon cracking
its been done

>>12121745
>tfw allergic to science and math

>>12121601
it means theres ww1 going on on the surface of venus by aliens right now

>>12121746
>Energetic events are also not an effective route to making PH3.Lightning may occur on Venus, but at sub-Earth activity levels33.We find that PH
3 production by Venusian lightning would fallshort of few-ppb abundance by factors of 10^7 or more. Similarly,there would need to be >200 times as much volcanic activity on Venus as on Earth to inject enough PH3 into the atmosphere (up to~108 times, depending on assumptions about mantle rock chemistry). Orbiter topographical studies have suggested there are notmany large, active, volcanic hotspots on Venus34. Meteoritic delivery adds at most a few tonnes of phosphorus per year (for Earth-like accretion of meteorites). Exotic processes such as large-scale tribochemical (frictional) processes and solar wind protons also onlygenerate PH3 in negligible quantities (W. Bains et al., manuscript in preparation, submitted to Astrobiology as ‘Phosphine on Venus cannot be explained by conventional processes'; also see ExtendedData Fig. 10)

>>12121790
nice
Im starting to think these Royal Astoronomical guys are on to something here. I wish these upstarters well

>>12121779
>>12121790
This is a prime example of the shitty sort of studies that get published.
Instead of focusing on one thing and demonstrating it well (existence and concentration of PH3 in Venusian atmosphere), they try to prove extraterrestrial life.
>our study also looked into every possible mundane explanation and pathway for phosphine formation, details about Venusian atmosphere, projections of amounts able to be produced... and eliminated them all
You are retarded if you take their entire mishmash of claims as gospel.

>>12121842
pretty based. PopSci is all about the story these days though

>>12121601
Because their department needs more funding for boring experiments and research that nobody is interested in.

tis a sad, sad day when
>>12121842 & >>12121894

is more plausable than
>>12121790 & >>12121721

what happened bros?

>>12121842
Can you even fucking read or do you just choose not to?

>>12121907
No time to talk anon, gotta cancers to cure and invisibility cloaks to invent.

>>12121842
have you tried actually reading the paper instead of the shitty popsci articles about it
lmao

>>12121920
Are you retarded? Popsci is jumping up and down over the existence of aliens being proven. You're an imbecile if you believe any of it. There's no life on venus, there's likely no non terrestrial life in our solar system.

>>12121928
I mean, there could be life on venus, but until a probe comes back with a petri dish or 32sRNA i'm still skeptical

>>12121928
how did you get past middle school without developing reading comprehension

>>12121928
I 100% believe that ALMA detected wavelengths corresponding to PH3 and that PH3 has been previously subject to robust consideration as a biosignature

>>12121931
How do you muster up the brain power to fucking breathe?

>>12121914
fine be that way

>>12121907
you didn’t read the literature, bro
we warned you about not reading the literature, man

>>12121949
If scriptural or clerical dogma determined the beliefs of popular religion then why does every christian believe in pagan afterlife memes and do pagan rituals on pagan holidays?

>>12121949
this is true. Ok fellas gonna fire up the printer and log off. have a good one. Be civil ffs though

>>12121601
phosgene and phosphine aren't even the same thing

>>12121601
>finding phosgene
>phosgene
it's phosphine you absolute retard
kys

>>12121639
you have no proof that it would be too slow

>tfw you might live long enough to see alien lifeforms
It's amazing to me that we might find life, albeit very primitive, on fucking Venus. It's one of the most inhospitable places in the Solar System.

>>12121623
kek you actually saved that retarded post

>>12121907
It's not more plausible

>>12123439
no u

>>12121601
I've heard phosphine smells like garlic.
And if you can actually smell it, you probably already inhaled a lethal amount.
Takes a few hours for the effects to be noticeable, at which point your lungs have been seared and you will slowly die over the next few days.