Water on Mars? This CNN broadcast does a pretty good explanation on the reasoning behind the images from the Mars rover that prove water once existed there. Now to expand on this knowledge and set new goals. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Bees can understand zero. Can you? What Your Doctor Will Look Like In The Future How Much Does It Take To Overdose? Are Humans Still Evolving? Here’s how much taller humans have gotten in the last 100 years Which Countries Have The Fastest Internet?