The announcement of the discovery of a possible asteroid coming from another solar system is a big deal. Named as A/2017 U1, it was detected on October 19 by the Pan-STARRS 1 telescope in Hawaii, part of a sky observation system normally used to detect celestial bodies of various kinds. Its motion seems incompatible with the trajectories of asteroids and comets gravitationally bound to the Sun so it could be the first celestial body discovered that came from another star, perhaps Vega.