Lave-like mud flows on Mars (VIDEO) Lancaster University This video is under embargo. Please login to access this video. Caption The mystery of some lava-like flows on Mars has been solved by scientists who say they are caused not by lava but by mud. Using the Mars Chamber at the Open University, the scientists recreated the surface temperature and atmospheric pressure on Mars as part of a simulation of conditions on both Earth and Mars. Credit Czech Academy of Sciences and Lancaster University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.