Abstract
With the enormous improvement in cosmochemical techniques, it is now possible to obtain accurate estimates of the abundances of even the rarest nuclides in the solar system. While a model of the formation of sun and solar system based on the addition of various nuclear species from diverse sites at various times before the formation of solar system (BSS), is very much favoured by the majority of the cosmochemists, the anomalies in the noble gases are not adequately addressed by this model. This has resulted in a novel suggestion of a single supernova contributing to all the elements in the solar system. It is suggested that despite many difficulties, a modification of the single supernova hypothesis taking into account the exotic suggestion of Clayton et al. (1975) of the presence of a mini-blackhole at the solar center may prove beneficial in understanding all the relevant observations.
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