The G.P.S. works in every place in earth G.P.S works in the bermuda triangle  But there is no use of G.P.S

For every four minutes the black  hole  releases magnetic waves  in the time  of releasing the magnet waves it any object comes near to that black holes magnet waves pushes the object away from it

So many scientists think that the black holes only pushes away iron ,silver ,brass objects but it does not depends upon the materials it push away every objects wood ships]also that comes near to that bermuda triangle

So many scientists assumes that black holes changes its place for every year But that assumption was wrong Black holes stand by thousand thousands years  by  earth black holes magnet waves  Dwarka, 12,000 Year Old City of Lord Krishna in Gujarat that times city normal city now under water city  till now same place
                     Earth signs.......

The signals which are sent by the alien  couldn,t  reach the earth because the signals will be stopped by the stars  or some objects   which are present in the universes