Borisov

2I/Borisov, originally designated C/2019 Q4 (Borisov), is the first observed rogue comet and the second observed interstellar interloper after ʻOumuamua.

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Interstellar interlopers like ‘Oumuamua and Borisov are much more common than previously thought

Russian Government has approved the extension of Russia's participation in the International Space Station program until 2028. Yesterday the head of Roscosmos Yuri Borisov sent letters to the ISS partners to inform them about it.

Yuri Borisov Inspected the Construction Site of Russia’s National Space Center

Interstellar comets like Borisov may not be all that rare

Interstellar Comets Like Borisov – Incredible Rogue Visitors or More Common Than We Think?

Astronomers Detect Nickel in Coma of Interstellar Comet 2I/Borisov

Nickel atoms detected in the cold gas around interstellar comet 2I/Borisov

Extrasolar Object Interceptor Would be Able to Chase Down the Next Oumuamua or Borisov and Actually Return a Sample