Gallery: Photos suggest flowing water on Mars Summary: Several observation from NASA's Mars Reconnaissance Orbiter show evidence of water flowing during the warmest months on the Red Planet. By Andy Smith | August 4, 2011 -- 12:54 GMT (05:54 PDT) Previous | Next Image 4 of 9 Here is a similar looking flow in the Horowitz crater. Image credit: NASA/JPL-Caltech/Univ. of Arizona Topic: Nasa / Space Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.