Bruce Murray Space Image Library

Pluto's progression: June 22 to July 1, 2015 (third-to-last Pluto day before New Horizons encounter)

Pluto's progression: June 22 to July 1, 2015 (third-to-last Pluto day before New Horizons encounter)
Pluto's progression: June 22 to July 1, 2015 (third-to-last Pluto day before New Horizons encounter) Pluto nearly doubled in apparent size in New Horizons' forward view between June 22 and July 1, 2015. This period covered more than one Pluto day. NASA / JHUAPL / SwRI / Björn Jónsson