There are scientists who have written papers describing two huge nuclear blasts on Mars. It has been shown that these blasts could not be natural and the radiation from them must have come from weapons grade radiation signatures. That is amazing. More and more scientists are poking their heads over the parapet !
This is brilliant. Hopefully in a few years I save up enough to send my own probe to Mars and fetch some of those artifacts. We should feel privileged that we are among the first people to realize what Mars is showing us. This looks like result of destruction on a planetary scale and we now must build a picture out of the pieces.