Four-billion-year-old ancient rocks yield clues about Earth`s earliest crust

A researcher spent the better part of three years collecting and studying ancient rock samples from the Acasta Gneiss Complex in the Northwest Territories to understand the environment in which they formed.

Early Earth experienced hazy shades of life

Earth’s early atmosphere fluctuated between ‘organic haze’ and a ‘haze-free’ environment similar to that of Saturn’s moon, Titan.