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
NASA I human launch vehicle. Previously, in the early 2000s, there was a plan called the Constellation Program but this was defunded in the early 2010s. In the 1990s, there was a plan called "Faster, Better, Cheaper" In the 1980s, there was a directive to build a manned space station. The NASA Authorization Act of 2017, which included $19.5 billion in funding for that fiscal year, directed NASA to get humans near or on the surface of Mars by the early 2030s. In December 2017, on the 45th anniversary of the last manned mission to the Lunar surface, President Donald Trump