Half Way To Pluto

The Approach Begins: New Horizons Is Half Way To Pluto
“Another milestone passed! Today NASA’s New Horizons spacecraft is 15.96 astronomical units (about 2.39 billion kilometers, or 1.48 billion miles) from the Sun – putting it halfway between Earth’s location on launch day in January 2006, and Pluto’s place during New Horizons’ encounter with the planet in July 2015. “From here on out, we’re on approach to an encounter with the Pluto system,” says New Horizons Principal Investigator Alan Stern, from the Southwest Research Institute. “The second half of the journey begins.”