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Mars does not have Earth’s kind of magnetic shield, so it has often been treated as the solar system’s more exposed world. It ...

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, ...

NASA’s MAVEN spacecraft has confirmed, through nearly a decade of orbital observations, that solar wind physically strips gas from Mars’ upper atmosphere in a process called sputtering. That finding ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Mars' missing atmosphere may be locked up in the planet's clay-rich ...

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 ...

After nearly a decade in orbit, NASA's MAVEN spacecraft has, for the first time, directly observed the process that scientists had long suspected was responsible for stripping Mars of its atmosphere.

Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much of its atmosphere, helping transform it from a warmer, wetter planet into a ...

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 ...