The spacecraft went incommunicado on Saturday, just about a week before its July 14 Pluto flyby.
Data from Hubble Space Telescope has revealed that Pluto's moons move erratically due to combined gravitational field of Pluto and Charon.
NASA's New Horizons probe has sent back the first images of the Pluto and the five moons that orbit it.
Two Pluto's smallest moons, Kerberos and Styx, are not easily visible given their smaller size and faintness.
At least a couple of new planets larger than Earth might be present in our solar system beyond Pluto, orbiting sun, according to a new analysis.
New Horizons spacecraft which is 2.9 billion miles away from Earth is now all set to capture images of Pluto to enhance its understanding.
