<p><span class="meta-org">NASA</span>&rsquo;s <span class="meta-classifier">Mars</span> rover Curiosity has spotted pieces of an old streambed where water rushed by billions of years ago, scientists reported at a news conference on Thursday. <a href="http://www.nytimes.com/2012/09/28/science/space/rover-finds-signs-of-old-streambed.html?_r=1&amp;ref=water">More</a> (Source: The New York TImes)</p>
