Is there water, air, and life on Mars? Scientists have unveiled astonishing evidence that life on Mars may be based on the presence of liquid water, organic matter, and methane gas. The European Space Agency's "

Is there water, air, and life on Mars? Scientists uncover astonishing evidence

The conditions for the possible existence of life on Mars are: the presence of liquid water, organic matter, and methane gas on Mars. The European Space Agency's Mars Express rover discovered a lake of liquid water beneath Mars' South Pole, and NASA's Curiosity rover discovered organic molecules in sedimentary rocks on the Martian surface, where the concentration of methane gas varies with the season and location. These discoveries and analyses provide important clues to the possible existence of life on Mars. These discoveries and analyses have not only enhanced human knowledge and understanding of Mars, but also stimulated human exploration and anticipation of life on Mars.