Meet the mysterious electrides

These chemical oddities may explain why Earth seems to be deficient in certain elements. For close to a century, geoscientists have pondered a mystery: Where did Earth’s lighter elements go? Compared to amounts in the Sun and in some meteorites, Earth has less hydrogen, carbon, nitrogen, and sulfur, as…

Did Edison accidentally make graphene in 1879?

Rice University chemists replicated Thomas Edison’s seminal experiment and found a surprising byproduct. Graphene is the thinnest material yet known, composed of a single layer of carbon atoms arranged in a hexagonal lattice. That structure gives it many unusual properties that hold great promise for real-world applications: batteries, super…