Right here’s the object: the outer areas of galaxies in our universe rotate on the identical velocity nearer to the middle, which contradicts Newtonian mechanics through which the rotational velocity must lower with distance from the middle because of lesser gravitational pull.
Alternatively, that doesn’t occur, and the entirety rotates on the identical velocity, suggesting that there’s further, unseen mass that gives the important gravitational pull that maintains velocity. Thus, scientists have get a hold of the idea that of darkish topic, and so they’re now seeking to verify the use of of black holes.
