Scientists creating a gravity map of Mars have discovered the presence of mysterious large-scale structures hidden beneath a ...

We know Mars once had an active geological past, filled with water, volcanic activity, and dynamic geological changes. Now, ...

Iron is a micronutrient indispensable for life, enabling processes such as respiration, photosynthesis, and DNA synthesis.

A new study co-led by the Smithsonian and the University of Arizona offers the most detailed glimpse yet of how Earth's ...

At times during the past half-billion years, carbon dioxide warmed our planet more than previously thought, according to a ...

A newly discovered doughnut shape in Earth's outer core may reveal elements that help drive the formation of the planet's ...