NASA’s Curiosity Mars rover viewed this low ridge, which looks a bit like a crumbling curb, on May 16. Scientists think the hardened edges of such ridges — part of

A pteropod shell is shown dissolving over time in seawater with a lower pH. When carbon dioxide is absorbed by the ocean from the atmosphere, the chemistry of the seawater

(a) Lateral evolution from a sharp to a transitional contact between brain coral terrain and polygonal terrain within the terraced crater located 1.4 km W of AP-8. HiRISE ESP_043220_2210. Vertical

Gamma-aminobutyric acid, (GABA) — Wikipedia Researchers at the universities of Amsterdam and Utrecht have observed the formation of nanocavities in montmorillonite clay under exposure to gamma-aminobutyric acid, a molecule commonly

Paleozoic marine biodiversity, atmospheric composition, and seafloor oxygenation history. (A) Paleozoic marine biodiversity curve (17), showing major biotic events including two biodiversification events during the late Cambrian–Ordovician (GOBE) and Carboniferous–early