Giant, dense structures have been discovered beneath the surface of Mars and they are leaving experts both mystified and excited. The first of these, confirmed by researchers in a fascinating paper, ...

Space scientists have spotted a city-sized “butterfly” on Mars. A striking new image from the European Space Agency’s (ESA) Mars Express spacecraft has revealed a 20 km-wide crater resembling the ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The European Space Agency has released new computer generated images of a "butterfly" crater on ...

For years, scientists have been intrigued by mysterious dark streaks running down the slopes of Martian cliffs and craters. These marks, called slope streaks and recurring slope lineae (RSLs), have ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. There might be a hidden ocean's worth of liquid water below the surface of Mars, seismic evidence ...