European Southern Observatory's (ESO) very large telescope recently discovered a C-type asteroid named 2004 EW95 that is found 4 billion km away from Earth in Kuiper belt. Kuiper belt is a region extending from Neptune to approximately 50 AU from the Sun that consists of many asteroids in a frozen state and ESO is the most productive observatory in the world.
Detecting such a rare asteroid in the deep space by a telescope on earth is not an easy task. The reflected spectrum from the asteroid is different from other objects in Kuiper Belt and that made the astronomers look into it deeper. As a result, they have analysed its composition that mainly composed of coal, ferric oxides and phyllosilicates and its size is about 300 km diameter, according to the reports from Queen's University Belfast in the UK.
Scientists believe that the asteroid could have its origin in Mars-Jupiter belt but later exited the solar system when the gaseous planets such as Jupiter, Saturn, Uranus and Neptune were formed. Interestingly, it is identified as the first carbon-rich asteroid discovered in the Kuiper belt that usually has objects made of methane, ammonia and water. With this, it would be possible to analyze the origin of the solar system but it is quite difficult because of its long distance from the Earth.