In late 2013 and early 2014, NASA's Curiosity rover detected an unexpected spike in methane on Mars — 10 times the usual level. Within a few months, the spike faded. Since then, Curiosity has recorded ...

For seven years, a puzzling signal beneath the Martian south pole has divided planetary scientists over whether a hidden lake ...

Scientists may have solved a long-standing Martian mystery, supporting our never-ending quest to find signs of life on the red planet—Why does Mars burp? In recent years, NASA's Curiosity rover has ...

The brief spikes of methane observed on Mars tend to follow the seasons, with late spring and early summer seeming to have the highest levels of atmospheric methane. When you purchase through links on ...