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When did Jupiter's moon, #Europa, form its metallic core? Maybe recently... or not at all😮
📢New in @ScienceAdvances, a story about Europa's interior structure and slow (but eventful) evolution
Link:shorturl.at/fBH02
Summary thread w/ visuals ↓ #ScienceAdvancesResearch
📢New in @ScienceAdvances, a story about Europa's interior structure and slow (but eventful) evolution
Link:shorturl.at/fBH02
Summary thread w/ visuals ↓ #ScienceAdvancesResearch
A small moon like Europa may have formed as a cold mixture of hydrated rock and metal. While it is possible to accrete ice, there may already be enough hydrogen and oxygen in the rock to form the ocean!
Within the first 0.5–1.5 Gyr, Europa slowly warmed up until the onset of ocean formation. Hydrated rocks may release supercritical fluid, which would migrate to the moon's surface.
Excited to share our new paper out in @ScienceAdvances!! We analyse new genetic data from >1300 people from West and Central Africa and Sudan, finding incredible diversity and signals of admixture across the continent. science.org/doi/10.1126/sc…. #ScienceAdvancesResearch thread>
Despite the clear insights into medicine and human history that studying African diversity can provide, African genomes have been, and still are, underrepresented in genetic studies compared to other regions of the world
With our samples we find that genetic structure can correlate with geographic distance, linguistic group, and self-described ethnic group. Some of this structure is seen between groups living <20km apart, and in western Cameroon it might associated with historical polities...
