A friend informed me she had given up vegetable gardening. She had created her garden a few years earlier by tilling a patch ...

Soil is a mixture of tiny particles of rock, dead plants and animals ... Water drains through them easily so it usually feels dry. Clay soil is usually sticky and has small particles.

The McDermitt Caldera, an ancient supervolcano straddling the Nevada-Oregon border, may hold the world’s largest lithium deposit ever discovered. With estimates ranging between 20 and 40 million ...

Spanning the width of the Gardon River, it is the highest of all Roman-era aqueduct bridges, with its three tiers of arches towering 50 meters high. Despite being constructed in the 1st century AD, it ...