Study suggests cosmic impacts melted Earth's earliest crust 4 billion years ago

New research proposes that massive asteroid bombardments during the Hadean eon may have played a significant role in melting Earth's first crust. Scientists have long attributed the extreme heat of early Earth primarily to internal geological processes, but this study challenges that assumption. The findings suggest that impacts from space contributed substantially to the intense thermal conditions of the planet's earliest period. This reexamination of the Hadean era could reshape our understanding of how Earth's surface and geological history first formed.