Largest Volcano on Mars Shows Vein-Like Structure in Photo Taken From Space

There are a number of “biggest” features that can be found on Mars. Some are the biggest in the solar system, like the Valles Marineris, the longest and deepest canyon we know of, or the Hellas Planitia, a Western Europe-sized impact crater, and the largest one we’ve noticed so far. Other features, like the Alba Mons (continue reading...)