<p style="text-align: center;"></p> <p>With the help of rover Curiosity, we now <i>know</i> that ancient Mars had <a href="http://news.discovery.com/space/lifes-a-beach-for-curiosity-mars-pebbles-discovered-130531.htm" target="_blank" rel="nofollow">large quantities of liquid water <i>flowing</i> across its surface</a>. However, evidence for
<p style="text-align:center"><br /> <em>This mosaic, which features the spectacular Kasei Valles, comprises 67 images taken with the High Resolution Stereo <a href="http://www.winnybids.com">Camera</a> on ESA’s Mars Express. The mosaic spans 987 km
<p>With all the fanfare about Mars rover Curiosity landing on the Red Planet in August 2012, it’s easy to forget that there’s already a rover on Mars—an older, smaller cousin
<p>By studying rocks blasted out of impact craters, ESA’s Mars Express has found evidence that underground water persisted at depth for prolonged periods during the first billion years of the
<p>ESA’s Mars Express has returned strong evidence for an ocean once covering part of Mars. Using radar, it has detected sediments reminiscent of an ocean floor within the boundaries of