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, ...

An international team of scientists has modeled the behavior of the atmosphere of a Mars—like exoplanet orbiting Barnard's star, a red dwarf six light-years from Earth. This was reported on the news ...

Stand on the surface of Mars without a spacesuit and you would lose consciousness in roughly 15 seconds. Not because of the ...

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 ...

But a new study published in Applied and Environmental Microbiology suggests that some organisms may be far more difficult to ...