MESSENGER reveals a more dynamic Mercury surface

Compared with Earth, the surfaces of most other objects in the solar system appear largely static. Planetary scientists have long believed that impacts from space debris are the principal source of change on these surfaces ...

Fire corals winning the battle for domination of Caribbean reefs

Every year for the past three decades, California State University, Northridge marine biologist Peter Edmunds has traveled to the Caribbean island of St. John in the U.S. Virgin Islands to document the life history of fire ...

Solar wind a major driver of atmospheric sodium at Mercury

No object in the solar system experiences the sun's solar wind more powerfully than Mercury. The planet's magnetic field deflects the sun's stream of electrically charged particles at a distance of only 1,000 kilometers from ...

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