Little Foot’s 3.67-million-year-old bones preserve a split locomotor signature: ape-like arms, human-like leg loading, and a life spent between trees and the ground
T. rex ran hotter than its Late Cretaceous world, with teeth recording an average body temperature of 36.3°C
Metal-bearing gas was already moving at up to 250 kilometers per second around galaxies less than a billion years after the Big Bang
Astronomers spot what may be the first stellar stream from a globular cluster torn apart outside the Milky Way
β Pictoris b is blasting out auroral radio bursts from a magnetic field at least 1.25 kilogauss strong
Microscopic black holes at the LHC remain elusive—but their possible mass is now constrained to 9–11.4 TeV