Quantitative Classification of Igneous Rocks Based on Chemical and Mineral Characters, with a Systematic Nomenclature. By Whitman Cross Joseph P. Iddings Louis V. Pirsson Henry S. Washington ...

Forbes contributors publish independent expert analyses and insights. Amanda Kooser covers the quirky side of science and space.

Mars attracts attention in an odd way. This time, it has to do with a skull-shaped rock rather than cold poles or old rivers. This image from NASA’s Mars Perseverance rover, taken by the Mastcam ...

However, recent chemical analyses by Perseverance’s SuperCam instrument suggest that Skull Hill’s composition does not match typical meteorites. Instead, it may be an igneous rock formed from magma or ...

Because these crater floor samples came from igneous rocks forged in lava flows, they can help scientists understand the chemical composition of Mars’s interior, Wadhwa points out. That could ...

A University of Tokyo team has said that it has managed to rapidly identify from photographs the size, location and shape of some 200,000 rocks on two asteroids using artificial intelligence ...