Scientists say the Iowa-sized object in the asteroid belt has a surface composition similar to Ceres.
Scientists have long been puzzled by the asymmetrical nature of the moon's two hemispheres.
The planet is believed to be 5,000 times the mass of Pluto.
Just three months after the historic flyby, the New Horizons team has a paper coming out in the journal "Science."
Program scientist Curt Niebur explains new data from NASA's New Horizons mission.
NASA has released an image taken by the New Horizons spacecraft just 15 minutes after its Pluto flyby.
One day after the flyby, the New Horizons team makes an important discovery about geology based on a detailed surface image.
Videos, tweets and a Google doodle honor the historic moment in space exploration.
NASA published its most detailed image yet, taken one day before the flyby. Even better images are still to come.
From launch to the scheduled flyby on July 14, New Horizons has sent back images of Jupiter and its moon Io, Neptune, and now Pluto and its moon Charon.
NASA released a new video simulating a fly by of Ceres, based on images taken by its Dawn spacecraft.
A signal from NASA's Dawn confirming the first-ever successful entry into orbit of a dwarf planet came back at 8:36 a.m. on Friday.
NASA "did not expect to be this puzzled" by the appearance of two reflective lights on the protoplanet.