Mercury's mysteries start to unfold

Abstract

The article focuses on a study conducted by D. E. Smith and colleagues and M. T. ZUBER and colleagues on planet Mercury. It says that the data were obtained by the U.S. National Aeronautics & Space Administration's (NASA) MESSENGER space mission, in which Smith and colleagues determine Mercury's internal structure and gravity while ZUBER and colleagues map the planet's northern hemisphere topography. It mentions that ground-based radar data confirms the presence of a liquid-iron-rich outer core.