Some factual mistakes in the Article.

The USSR landed a probe on mars, the unimagetivelly called Mars 3, it's mission was aborted in less than 2 minutes due to communication failure, but it acchieved a successful landing, and was actually the first one to do so succesfuly.

Its predecessor, Mars 2 reached mars, but crash landed, but have the honor of being the first man made object to land on mars surface.