We once thought Mars had canals built by an advanced society. We’ve come a long way since then, but there is still much to discover, finds Leah Crane
Source:
https://www.newscientist.com/article/mg24632892-700-the-sirens-of-mars-review-inside-the-hunt-for-life-on-the-red-planet/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home