This comet is a pristine visitor from the earliest days of the solar system
Observations of comet 2I/Borisov show that it has never passed near to a star before, and studying it could give clues to the makeup of the early solar system.
Hubble captures a wandering comet passing through the Trojan asteroids
Hubble Space Telescope snapped an image of an object called P/2019 LD2 which is part-comet, part-asteroid.
See our solar system’s newest spectacle, comet NEOWISE, in glorious detail
It was captured by NASA’s Parker Solar Probe