New Horizons spacecraft of the National Aeronautics and Space Administration (NASA) was launched from Cape Canaveral, Florida, to study Pluto, its moons and Kuiper belt. About a decade after the liftoff, the spacecraft has passed the dwarf planet and now, it is cruising through the Kuiper Belt.

Earlier, NASA's New Horizons spacecraft passed dwarf planet Pluto and provided some stunning images of it. Now, the spacecraft is all set for its new mission: 2014 MU69. If NASA extends its mission, New Horizons will study the object (2014 MU69) in 2019.

According to reports, after Pluto, the spacecraft's new mission is 2014 MU69, a Kuiper belt object about 28 miles in diameter. If the United States space agency extends the mission, the probe will study the object in 2019. After passing 2014 MU69, New Horizons will continue its journey in space.

The space probe is also searching for mysterious 'Planet X' in the Kuiper Belt. Some scientists believe that the planet is somewhere present in the region of our Solar System beyond the planets. As New Horizons could soon start investigate a mysterious object in the region, it seems the space agency has taken existence of 'Planet X' seriously. Some pictures taken by a telescope suggested that the object is a huge icy rock.

Scientists have already found about 1,500 different objects in the Kuiper Belt, and most of them are so small in size that they cannot be considered as a planet. But, the region has some objects that have qualified for dwarf planet status. The mysterious 'Planet X', according to scientists, could be bigger than our home planer, and even bigger than Neptune.