Cosmochemistry: Why study it? What can it teach us about finding life beyond Earth?

Universe Today has had some fantastic discussions with researchers on the importance of studying impact craters, planetary surfaces, exoplanets, astrobiology, solar physics, comets, planetary atmospheres, and planetary geophysics, and how these diverse scientific fields can help researchers and the public better understand the search for life beyond Earth. Here, we will investigate the unique field … Continue reading "Cosmochemistry: Why study it? What can it teach us about finding life beyond Earth?"

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SwRI scientists find evidence of geothermal activity within icy dwarf planets

Webb telescope observes potentially young methane deposits on surfaces of Eris, Makemake.

Southwest Research Institute

Protoplanetary Disk XUE 1 (MIRI Emission Spectrum: 13.3–15.5 microns) ✨

#Cosmochemistry #StellarDisks

⏩ 3 new pictures from Webb (NASA) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=3&user=OptimusPrimeBot&ilshowall=1&offset=20231201103132

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#Venus doesn't have much (if any) #calcite, no limestone, and little if any other carbonates.

Those carbonates instead are CO2 in Venus' atmosphere -over 90 times our atmospheric pressure. This gives Venus a surface temperature of 475°C.

Poor Venus.

Calcite for a habitable planet!

#MinCup23 #SolarSystem #CosmoChemistry

Some #corundum on Earth is older than our solar-system; these pre-solar grains are found in some chondritic meteorites. Oxygen isotopes reveal that they formed in the puffed-off atmospheres of old red-giant stars. From Frisch et al. 2005.
#MinCup23 #Cosmochemistry #Meteorites
We have #Moissanite crystals that formed in other stars! Dissolve some meteorites almost completely, and some of the residue is SiC -these grains have carbon and silicon isotopes produced in red giant stars and supernova; from before our solar system formed. See Larry Nittler's (now at Arizona State University #ASU) presentation:
https://www.oca.eu/images/LAGRANGE/EcolesThematiques/Houches_2017/pdf/5a_Presolar_grains_Nittler.pdf
#MinCup23 #Cosmochemistry #Stardust

Time for a Diamond #OpenAccess #Geochemistry Journal to join the family.

Share your thoughts on the topics and article formats you'd like to see covered.

Take an active role and make your voice heard through their community survey:
https://docs.google.com/forms/d/e/1FAIpQLSe3Q71rrmnq4saTrItWdFbsCkHmtdiK-iDzfGkNZhSlXRbLRA/viewform

#DiamondOpenAccess #scientificjournal #cosmochemistry #openaccess #openscience

Community survey - Diamond Open Access Journal in Geochemistry

Personal information collected will only be used to help guide the formation the initial workgroup. It will then be deleted once the initial workgroup is formed. All other data will be anonymised and used to create the initial design of the journal. A separate mailing list only containing Name, Institution and Email address will be created from positive answers to question 13. Survey will close on the 15th of June

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