An Interstellar Visitor Had a Sad Story to Tell
In 2019, Gennady Borisov, an amateur astronomer in Crimea, discovered his seventh comet. This icy object wasn’t like the others Borisov had found, or like any of the other comets in the solar system. This one wasn’t orbiting the sun.Instead, it had been drifting alone in interstellar space, following its own path, until one day, it entered our solar system and grazed past the sun.