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.

Of Interest: This high-resolution enhanced color view of Kuiper crater shows not just the bright rays that extend out from this relatively young crater but also the redder color of Kuiper’s ejecta ...

NASA's Messenger spacecraft will make history Thursday when it becomes the first probe to orbit the planet Mercury. But it also promises to help solve a host of mysteries about the solar system's ...