Comet 2I/Borisov

2019-12-20 - Comet 2I/Borisov, captured here by the Hubble Telescope, is the second interstellar object detected in the solar system. Following its closest approach to the Sun on December 8, 2019, the comet will be at its brightest in the southern sky in December 2019 and January 2020. (Credit: NASA/ESA/D. Jewitt (UCLA))