Dubbed "araneiform terrain," the Mars surface formations span over a half-mile long and have hundreds of branches that ...

NASA scientists might have solved the 21-year-old mystery known as 'Spiders On Mars'. This comes decades after observers ...

A low-density, weak-gravity region has been found below Olympus Mons and the Tharsis volcanoes, while Mars' northern ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Mars spiders have ...