A localized Martian dust storm has revealed a mechanism scientists had largely overlooked. Instead of rare global events, smaller storms may be pushing water into space far more often than expected.

Mars, long admired for its rusty hue and alien deserts, may play a far greater role in shaping life on Earth than once believed. A new study published in the Publications of the Astronomical Society ...

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.