One week ago, the MESSENGER spacecraft transmitted to Earth the first high-resolution image of Mercury by a spacecraft in over 30 years since the three Mercury flybys of Mariner 10 in 1974 and 1975.

IT has already been observed by J. Stark and by others that a fluted band system of mercury at λ3900 A. is superposed on the continuous spectra, covering the visible and the ultra-violet regions, but, ...

Though Mercury may look drab to the human eye, different minerals appear in a rainbow of colors in this image from NASA's MESSENGER spacecraft. This visual may only be used in conjunction of reporting ...