Earth’s core may contain as much as 45 oceans’ worth of hydrogen, scientists find

A new study published in Nature Communications estimates that Earth’s core may contain as much as 45 oceans’ worth of hydrogen, suggesting that Earth acquired most of its water during its formation. This finding challenges previous theories that water arrived later through comet impacts. The research, led by Dongyang Huang from Peking University, used advanced techniques to replicate core conditions and estimate hydrogen content.