India, Jan. 28 -- Quantum gravity, a combination of Einstein's concepts of quantum physics and general relativity, was used in the research

Around 95 percent of the Universe is unknown to human beings. It is often referred to as dark which has nothing to do with the colour of any substance but to do with the unknown nature of cosmic entities known as dark matter and dark energy.

Now, scientists from the University of Sussex have found a new way to know more about dark matter. They have narrowed down the range of masses within which particles that could make up dark matter may lie in.

The range they have established - 10^-3 electron-volts to 10^7 electron-volts - is far smaller than the earlier known range of 10^-24 electron-volt to 10^...