21/Borisov, A Comet from outside the solar system !!! the object was flaunting a large tail that was nearly 6.2 miles long. Subsequent observations confirmed the presence of outgassing matter as well as a hazy cometary coma. So it comes as little surprise that 21/Borisov is gassy. Not a little surprising but a lot!! because the outgassing can not be triggered by the solar heat. as is always the standard explanation for Comet outgassing and gas tails. Conclusion: just like comet 67P C-G. ( see: http://vixra.org/pdf/1410.0039v7.pdf) this is a strong support for internal energy source ( Fermion repelling micro black holes) of outgassing comets in general, as assumed by Quantum FFF Theory. see also: THIS
Gas (Plasma) production by the Comet black hole nucleus is explained below
