The Heaviest Element Ever Seen in an Exoplanet’s Atmosphere: Barium

Astronomers have spotted barium in the atmosphere of a distant exoplanet. With its 56 protons, you have to run your finger further down the periodic table than astronomers usually do to find barium. What does finding such a heavy element in an exoplanet atmosphere mean? It means we’re still learning how strange exoplanets can be. … Read more

New 3D model will help guide exploration for rare earth element deposits in alkaline igneous systems

A world map showing rare earth element-high field strength element (REE-HFSE) deposits and alkaline-silicate complexes mentioned in the main text. Alkaline-silicate complexes with and without carbonatite are shown in white, and systems containing major carbonatite-associated REE deposits are shown in gray. The crustal basement thickness map is an inversion of satellite gravity data (Alvey et … Read more