exosphere

Small collisions make big impact on Mercury's thin atmosphere

Recent modeling along with previously published results from NASA's MESSENGER spacecraft — short for Mercury Surface, Space Environment, Geochemistry and…

Mercury gets a meteoroid shower from Comet Encke

The findings are to be presented at the annual Meeting of the Division of Planetary Sciences of the American Astronomical Society at National Harbor, Maryland,…

CU-Boulder scientists detect magnesium in MESSENGER flyby of Mercury

Scientists had suspected magnesium would be present, but were surprised at its distribution and abundance, said Senior Research Associate William McClintock of…