A group of researchers from the University of Anitoquia in Medellin have carried out study. As per the study, it has been unveiled that the study researchers have found that a graveyard of comets.

If to go as per the sayings of the study researchers it has been found that these comets have been lying dormant for a number of years. Therefore, there are chances that they can get active as well.

Study researchers said that they have found that the asteroid belt between Mars and Jupiter. This belt contains as many as 85,000 dead and dormant comets.

Lead researcher Prof. Ignacio Ferrin said that comets become inactive as soon as their water content gets evaporated. But there are comets that can get active again and that are when they will get solar energy. This can easily be done when Jupiter's gravity level pushes these comets near to the sun.

The revelation of the same will soon appear in the Monthly Notices of the Royal Astronomical Society. "These objects are the `Lazarus comets,' returning after being dormant for thousands or even millions of years. Potentially any one of the many thousands of their quiet neighbors could do the same thing", said about Prof. Ignacio Ferrin.