The Gran Sasso results could be seen as tentatively offering support for the big bang theory – if we could find a way to test that they are indeed tr… - Jayant Vishnu Narlikar

According to the big bang theory the universe is only 13 billion years old... We made some observations a year ago which we are still trying to explain but the simplest explanation seems to be that there stars that are 20 billion years old.

Since the universe is infinitely old, you should see some very old stars. According to the big bang theory the universe is only 13 billion years old. No stars should be older than 13 billion years. In our cosmology, stars older than this should exist. So we are on the lookout for very old stars. We made some observations [a year ago] which we are still trying to explain but the simplest explanation seems to be that there stars that are 20 billion years old.

We have seven colours — violet, indigo, blue, green, yellow, orange and red (Roy G. Biv). Our atmosphere has a number of particles and when light falls on them, it gets scattered. With blue colour having less wavelength and more scattering qualities, it scatters and makes the sky blue. While red colour has opposite qualities than blue so traffic lights are of this colour.