Sulfur on Mercury was as important to the planet's formation as oxygen was to Earth's evolution, the study suggests.
As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.
Enriched Lithium is a critical ingredient in fusion reactors. Making it is a toxic nightmare, but scientists may have found a way to do it without poisoning the world.
The BepiColombo mission successfully completed its sixth flyby of the innermost planet, moving closer to its final goal of entering its orbit.
A fifth flyby of the petite planet showed aspects of the planet's surface in never-before-seen data.