Science and Discovery

Planetary Geology

2 articles

Editorial illustration for Teghaza 001: 4.1-Billion-Year-Old Martian Meteorite Reveals a Wetter, Earth-Like Early Mars
Earth & Environment

Teghaza 001: 4.1-Billion-Year-Old Martian Meteorite Reveals a Wetter, Earth-Like Early Mars

A 4.1-billion-year-old Martian meteorite, Teghaza 001, provides unprecedented evidence of an early, wetter, Earth-like environment on the Red Planet. This ancient igneous rock offers a rare glimpse into Mars' earliest crust and its potential for a dynamic water cycle.

David Grossman·October 30, 2026
Editorial illustration for Three Ways to Build a World: Why Mars Rips, Venus Blisters, and Icy Moons Flex
Earth & Environment

Three Ways to Build a World: Why Mars Rips, Venus Blisters, and Icy Moons Flex

Earth's unique plate tectonics are contrasted with the geological activity of Mars, Venus, and icy moons, driven by differences in internal heat and lithospheric structure. Understanding these comparative tectonic systems reveals diverse planetary evolution across our solar system.

David Grossman·October 25, 2026