Earth's potassium arrived by meteoritic delivery service finds new research led by Earth and planetary scientists. Their work shows that some primitive meteorites contain a different mix of potassium ...

Washington, DC—Earth’s potassium arrived by meteoritic delivery service finds new research led by Carnegie’s Nicole Nie and Da Wang. Their work, published in Science, shows that some primitive ...

Microscopic image of a meteorite thin section. Each color represents a different mineral, since light travels through each one in various ways. Chondrules are the round mineral aggregates, which ...