Learn about two black hole mergers in 2024 that experts revisited with new information from gravitational waves, confirming theories made by Albert Einstein.

Learn about the crayon-like tools made by Neanderthals during the Middle Paleolithic and how these objects likely prove the existence of a complex Neanderthal culture.

Periods of peace and wealth allowed people to invest more in the afterlife, leaving behind a lasting record of cultural and environmental history.