Did you know: While Mars may appear round, its true shape is subtly stretched and uneven, a product of its unique geological past and internal dynamics.

Mars, once a much wetter and more dynamic planet, is now a dry and inhospitable desert. The mystery of how the red planet ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. Are there thunderstorms on Mars? – Cade, age 7, ...

Mars has lost immense amounts of water over it lifetime, and scientists aren't sure exactly how. New research hints that the planet's violently varying tilt may be a key factor. When you purchase ...

Nilton O. Rennó receives funding from NASA, JPL, DARPA, and IARPA. Mars is a very dry planet with very little water in its atmosphere and hardly any clouds, so you might not expect it to have storms.