Comet Borisov

A very good update on Borisov

Detection of CN gas in Interstellar Object 2I/Borisov
https://arxiv.org/abs/1909.12144

Interstellar Interloper Borisov Looks Like a Regular Comet, for Now
https://eos.org/articles/interstellar-interloper-borisov-looks-like-a-regular-comet-for-now

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