The missing 500 million: Cosmic bombardment melted Earth's first crust

The heat of the Hadean may have come from impacts as well as the interior.
https://arstechnica.com/science/2026/07/the-missing-500-million-cosmic-bombardment-melted-earths-first-crust/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social