Martian Meteorite

A martian meteorite is a rock that formed on the planet Mars, was ejected from Mars by the impact of an asteroid or comet, and landed on the Earth. Of over 53,000 meteorites that have been found on Earth, 99 were identified as martian (as of 2011-07-30). These meteorites are thought to be from Mars because they have elemental and isotopic compositions that are similar to rocks and atmosphere gases analyzed by spacecraft on Mars.

Note that this does not refer to meteorites found on Mars, such as Heat Shield Rock.

The most recent Martian meteorite known to have landed on Earth is the Tissint meteorite which fell in July 2011. It is classified as a shergottite-type meteorite.

Read more about Martian MeteoriteHistory, Composition, Origin, Possible Evidence of Life

Other articles related to "martian meteorite, martian meteorites, martian, meteorite, meteorites":

Martian Meteorite - Possible Evidence of Life
... Several Martian meteorites have been found to contain what some think is evidence for fossilized Martian life forms ... The most significant of these is a meteorite found in the Allan Hills of Antarctica (ALH 84001) ... Other Antarctic meteorites do not contain PAHs ...
Achondrite - Classification - Martian Meteorite
... Martian meteorites are meteorites that originated from Mars ... are divided in four groups Shergottites Nakhlites Chassignites OPX martian meteorites (ALH 84001) ...