Small Asteroid or Comet 'Visits' from Beyond the Solar System
This unusual object, named A/2017 U1. is less than a 400 meters in diameter and is moving remarkably fast. A/2017 U1 was discovered by Western Science alumnus Rob Weryk, currently a postdoctoral researcher at the University of Hawaii Institute for Astronomy (IfA). Weryk subsequently searched the Pan-STARRS image archive and found it also was in images taken the previous night.