Bob Grant

The colossal structures, built by hunter-gatherers, are way older than archaeologists had thought possible

100 million years ago, the charismatic cephalopods ruled Earth’s oceans

But why?

Just take a look at these smoke rings

…up to the microscope

Optical advances yield an unprecedented look at the corona dancing around our nearest star

This delicate copepod species joins the ranks of a unique and fragile underground ecosystem

A mantle-rocking asteroid impact could have made curious glass beads on the surface

Glaciers are committing piracy at the bottom of the planet

The first evolutionary tree that includes every avian species