![Mercury](https://science.nasa.gov/wp-content/uploads/2023/05/pia19417-mercury-jpg.webp?w=4096&format=png)
Chemical Composition of Mercury
During MESSENGER's four-year orbital mission, the spacecraft's XRS instrument mapped out the chemical composition of Mercury and discovered striking regions of chemical diversity.
Credits: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
Image CreditNASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
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