Phobos-Grunt is a mission to Phobos, one of the two small satellites of Mars; it is developed by the Russian agency Roskosmos, with the participation of other countries to the science payload. Launch will occur at the end of 2011, for an arrival end-2012, and a landing on Phobos mid-2013. In situ analysis of Phobos soil will help to understand the composition of Phobos (structure, mineralogy, organic matter), hence its origin. About 200 g of soil samples will be sent from Phobos to Earth, where they will land in 2014.
References and Further Reading
- Christensen EJ, Born GH, Hildebrand CE, Williams BG (1977) The mass of Phobos from Viking flybys. Icarus 4:555–557Google Scholar