When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration shows two faces of Mars a hot and arid wasteland and as a cold water ice rich ...

Advances in technology have reopened the debate over terraforming Mars, shifting it from an impossible dream to a long-term scientific and ethical question.

New research suggests that temperatures on ancient Mars may have fluctuated between hot and cold periods through a relatively short period during its lifetime of billions of years. But these hot and ...

"It's been such a puzzle that there was liquid water on Mars, because Mars is further from the sun, and also, the sun was fainter early on." When you purchase through links on our site, we may earn an ...