A small, recently discovered asteroid — or perhaps a comet — appears to have originated from outside the solar system, coming from somewhere else in our galaxy.
Source: Small Asteroid or Comet ‘Visits’ from Beyond the Solar System | NASA
A small, recently discovered asteroid — or perhaps a comet — appears to have originated from outside the solar system, coming from somewhere else in our galaxy.
Source: Small Asteroid or Comet ‘Visits’ from Beyond the Solar System | NASA