Exploration of Mars
Overview of the exploration of Mars / From Wikipedia, the free encyclopedia
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The planet Mars has been explored remotely by spacecraft. Probes sent from Earth, beginning in the late 20th century, have yielded a large increase in knowledge about the Martian system, focused primarily on understanding its geology and habitability potential.[1][2] Engineering interplanetary journeys is complicated and the exploration of Mars has experienced a high failure rate, especially the early attempts. Roughly sixty percent of all spacecraft destined for Mars failed before completing their missions, with some failing before their observations could even begin. Some missions have been met with unexpected success, such as the twin Mars Exploration Rovers, Spirit and Opportunity, which operated for years beyond their specification.[3]
Year | Number of missions |
---|---|
1997 | 2 |
1998 | 1 |
1999 | 1 |
2000 | 1 |
2001 | 2 |
2002 | 2 |
2003 | 3 |
2004 | 5 |
2005 | 5 |
2006 | 6 |
2007 | 5 |
2008 | 6 |
2009 | 5 |
2010 | 5 |
2011 | 4 |
2012 | 5 |
2013 | 5 |
2014 | 7 |
2015 | 7 |
2016 | 8 |
2017 | 8 |
2018 | 9 |
2019 | 8 |
2020 | 8 |
2021 | 11 |
2022 | 11 |
2023 | 10 |