Friday, October 18, 2019
Hubble Observes 1st Confirmed Interstellar Comet
Hubble Observes 1st Confirmed Interstellar Comet: Hubble has given astronomers their best look yet at an interstellar visitor — comet 2I/Borisov — whose speed and trajectory indicate it has come from beyond our solar system. Comet 2I/Borisov is only the second such interstellar object known to have passed through the solar system.
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