Walter Alvarez

'A Most Improbable Journey'

Bog | Engelsk

Big History, the field that integrates traditional historical scholarship with scientific insights to study the full sweep of our universe, has so far been the domain of historians. Famed geologist Walter Alvarez-best known for the "Impact Theory&quo

'T. rex and the Crater of Doom'

Bog | Engelsk

Sixty-five million years ago, a comet or asteroid larger than Mount Everest slammed into the Earth, inducing an explosion equivalent to the detonation of a hundred million hydrogen bombs. Vaporized detritus blasted through the atmosphere upon impact, fall