New Horizons spacecraft crosses Neptune orbit en route to Pluto
ScienceNASA’s Pluto-bound New Horizons spacecraft has traversed the orbit of Neptune. This is its last major crossing en route to becoming the first probe to make a close encounter with distant Pluto on July 14, 2015. The piano-sized spacecraft launched in January 2006, reached Neptune’s orbit, nearly 2.75 billion miles […]