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 has long captured humanity’s imagination, especially given the tantalizing evidence of ancient river valleys and dried-up lakebeds that hint at a more hospitable past. But what exactly happened ...

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, ...

Researchers say they have gathered evidence of Mars' atmosphere sputtering for the first time. Understanding how Mars' atmosphere has changed over time will undoubtedly help us discover more about the ...

A NASA rover taking rock samples on Mars has uncovered a plentiful mineral that was invisible to orbiters studying the Red Planet from space. Scientists say the discovery of siderite, a type of iron ...

Mars’ north polar vortex locks its atmosphere in extreme cold and darkness, freezing out water vapor and triggering a dramatic rise in ozone. Scientists found that the lack of sunlight and moisture ...

NASA's first dual-satellite mission to another planet, ESCAPADE, is slated to launch this weekend. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works ...

Mars entry vehicle aerothermodynamics encapsulates the study of fluid dynamic and thermal phenomena encountered when a spacecraft penetrates the thin, predominantly CO₂ atmosphere of Mars. This field ...