The ubiquitous image of a farm includes a red barn, which historically took that shade because iron oxide, or rust, was added to the linseed oil to prevent mold and fungus. It also added the red hue ...

Mysterious micro-burrows in desert marble and limestone were probably made by microbes that lived millions of years ago. Exactly what kind of microbes bored into the rock remains unknown ...

"The excavation in 2015 made clear that the site had three [possibly four] roughly round or oval-shaped, stone-walled installations built against each other at the top of the limestone hillock.

Unusually small burrows, i.e., tiny tubes that run through the rock in a parallel arrangement from top to bottom, were discovered in marble and limestone of these desert regions. The paper is ...

Surface water and rain do not flow far on exposed limestone as they rapidly infiltrate into the rock and soil. Where a joint or intersection of joints has been greatly weathered or dissolved ...