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 ...

Blocks of frozen carbon dioxide sliding down Martian dunes may have carved the planet’s strange gullies, mimicking the work of living creatures.

Massive volcanic eruptions billions of years ago may have made it snow on Mars, leaving thick buried ice near the planet’s ...

"We have found a habitable environment," said John Grotzinger, project scientist for the Curiosity mission. "The water that was here was so benign and supportive of life that if a ...

Mars is closer than ever, but the human body isn’t ready. Inside the biological war against radiation, microgravity, and ...

With the advent of commercial spaceflight, an increasing number of people may be heading into space in the coming years. Some ...

New research reveals Mars’ mysterious gullies were carved by burrowing CO₂ ice blocks, not water, reshaping its story.

The equatorial regions of Mars are home to unexpectedly enormous layers of ice, and they may have been put there by dramatic ...

A new scientific theory on solar tide effects has dramatically improved the accuracy of calculating how much faster clocks ...

Microbes essential for human health have proven resilient against the extreme forces of space travel, offering hope for ...

A resilient gut microbe, Bacillus subtilis, has survived the extreme conditions of space launch and reentry - great news for ...

Researchers at Purdue spent years working with NASA engineers to figure out how to grow crops on Mars and beyond. Now the ...