On July 2, 2026, the Tianwen-2 probe closed to within 20 km (12.4 miles) of the small near-Earth asteroid 2016 HO3, one of only seven Earth quasi-satellites identified to date, kicking off a science ...

A major challenge in the study of human prehistory is linking cultural artifacts in the archaeological record to the human ...

Urokodia aequalis, an early Cambrian marine predator from the Chengjiang biota of China, preserves the earliest known evidence of chelicerae -- the pincer-like structures that later evolved into the ...

A small fossil collected on an Antarctic island more than four decades ago is a tail vertebra of a titanosaurian sauropod dinosaur that roamed Antarctica roughly 83 million years ago, according to a ...