Life on Mars

Radiation from beyond the solar system may destroy any organic fossils lying on the surface of Mars or Jupiter's icy moon Europa.

A sudden spurt of liquid water on Mars could potentially create deep lakes today, new research suggests.

How, exactly, were scientists able to prove that briny water can be found on Mars?

The dusty-red sphere now called Mars has fascinated stargazers since the dawn of humanity, but Earthlings' view of the planet has changed drastically over the years.

Scientists recently announced they had discovered flowing water on Mars, boosting the odds of extraterrestrial life, but why is water so essential to life in the first place?

The enigmatic dark streaks called recurring slope lineae (RSL) that appear seasonally on steep, relatively warm Martian slopes are probably caused by salty liquid water, researchers said.