For years, scientists have puzzled over how Mars lost the thick atmosphere it once had. That atmosphere was essential for liquid water to exist on the planet’s surface, billions of years ago. Today, ...

Mars once looked far more like Earth, with a thicker atmosphere and liquid water pooling on its surface, yet today it is a frozen desert where even a thin wisp of air struggles to hold on. NASA’s ...

Mars's atmosphere and climate are impacted by interactions with solar wind, a stream of plasma comprised of protons and electrons that flows from the sun's outermost atmosphere (corona), traveling at ...

(NEW YORK) — Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick atmosphere, which kept it warm enough to support flowing water on its ...

Mars's water disappeared somewhere, but scientists have been disagreeing for years about where exactly it went.

Eleven years in Mars orbit, terabytes of vital information on the Martian atmosphere, and over half a billion dollars in government funding. This is what was brought into peril on December 6th, 2025, ...

NASA’s Mars Atmosphere and Volatile EvolutioN orbiter has gone silent after more than a decade of groundbreaking research, leaving engineers scrambling to determine what went wrong with the reliable ...

The National Aeronautics and Space Administration has lost contact with its MAVEN spacecraft, which has orbited Mars for over a decade. MAVEN, an acronym for Mars Atmosphere and Volatile Evolution, ...