Pronab K Chowdhury obtained his Ph.D. degree in high energy physics from Tashkent State University , former USSR in 1987. He studied the structure of nucleons ( proton and neutron) in the Chiral Bag Model under the renowned particle physicist professor Mushakhanov M. M. of National University of Uzbekistan. In 1989, he proposed a hypothesis that the leptons and quarks of the first (latest appeared) generation (d , u ,e , νe) carry the important information about the origin and sustainment of the life in the universe. He also proposed that the instability of elementary particles is associated with duplication or rejection of evolutionary information. In March of 1989, he deduced the mass of the life bearing planet like Earth (ME), the surface temperature of the planet (TE) , the mass of the central star like Sun (MS) using the fundamental physical constants c ,G , ℏ , α , k and the masses and charges of the particles mentioned above. Letters of correspondence during the period 1989-92 with international science research institutes and science journals are given below:
