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
Mars landing at least 2024. This mission would be part of the European Aurora Programme. As a Mars lander approaches the surface, identifying a safe landing spot is a concern. Mars landing A Mars landing is a landing of a spacecraft on the surface of Mars. Of multiple attempted Mars landings by robotic, unmanned spacecraft, eight have been successful. There have also been studies for a possible human mission to Mars, including a landing, but none have been attempted. The most recent landing took place on November 26th, 2018 by the NASA probe InSight. As of October 2016, all methods of landing