Yesterday, the Messenger space probe swooped down and flew 124 miles from the surface of the innermost planet, Mercury, furiously snapping more than 1,200 pictures of a side of the planet that has never before been seen by a spacecraft. Today, after the NASA probe turned its antenna back towards Earth, it began sending home remarkable photos of Mercury's pockmarked surface.
The second Mercury flyby of Oct. 6 comes after a first flyby on Jan. 14, which looked at a different side of the planet. "When these data have been digested and compared, we will have a global perspective of Mercury for the first time," said [astronomer] Sean Solomon.... Launched in August 2004, MESSENGER - short for MErcury Surface, Space ENvironment, GEochemistry, and Ranging - is the first spacecraft in 33 years to greet Mercury up close since NASA's earlier Mariner 10 mission of the 1970s [SPACE.com].
The first pictures ...
