Images: Pluto unveiled
Jul 14, 2015 4:53 PM -
See NASA images of Pluto, as seen from the New Horizons spacecraft. The United States is now the only nation to visit every single planet in the solar system. Pluto was No. 9 in the lineup when New Horizons departed Cape Canaveral, Fla, on Jan. 19, 2006. See Pluto discoverer Clyde Tombaugh and the telescope through which he discovered the Pluto at the Lowell Observatory on Observatory Hill in Flagstaff, Ariz. On Tuesday, July 14, 2015, NASA's New Horizons spacecraft, carrying a small canister with his ashes, passed within 7,800 miles of Pluto.