A green meteorite found in Morocco in 2010 might hail from Mercury, a new study suggests. If so, the rock would be the first identified as being from the innermost planet.
The study dates the meteorite at 4.56 billion years old, which puts it in the early days of Solar System formation. Data from the Messenger spacecraft now orbiting Mercury has also allowed the study to conclude the chemical composition of the meteorite is similar to that of Mercury.
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