ChemistryApril 1, 2021
Volcanic Ash Threatens Pompeii’s Buried Murals
Tests on excavated paintings revealed corrosive salts coming from surrounding volcanic material
Stories by Lakshmi Supriya
AgricultureJanuary 1, 2021
Ancient Peruvian Farmers Harnessed El Niño Floodwaters
Structures diverted the weather pattern’s floods to new farmlands 2,000 years ago