Water on Mars any point in the year but would be ideal for solid carbon dioxide. The carbon dioxide melting in the warmer summer would yield liquid carbon dioxide which would then form the gullies. Even if gullies are carved by flowing water at the surface, the exact source of the water and the mechanisms behind its motion are not understood. The dry gullies are deep grooves etched into the slopes that are there year-round. There are many other features on Mars, and some of them change seasonally. In August 2011, NASA announced the discovery by undergraduate student Lujendra Ojha of current seasonal
Timeline of Mars Science Laboratory by living organisms. The discovery supports the notion that ancient Mars may have been habitable for life. On March 27, 2015, NASA reported that the landing site was fading from view in the two-and-a-half years since landing in 2012, as shown in the following animation: On April 4, 2015, NASA reported studies, based on measurements by the Sample Analysis at Mars (SAM) instrument on the "Curiosity" rover, of the Martian atmosphere using xenon and argon isotopes. Results provided support for a "vigorous" loss of atmosphere early in the history of Mars and were consistent with an atmospheric signature found in