NASA’s MESSENGER space probe has made its second swing past Mercury, just 125 miles (200 kilometers) above the cratered surface of our solar system’s innermost planet, snapping hundreds of pictures and collecting a variety of other data.
NASA’s MESSENGER space probe has made its second swing past Mercury, just 125 miles (200 kilometers) above the cratered surface of our solar system’s innermost planet, snapping hundreds of pictures and collecting a variety of other data.