“In late October, our solar system welcomed an alien visitor. An asteroid the size of a building… an entirely natural bit of cosmic flotsam from another star system.” #Oumuamua
For the first time ever astronomers have studied an asteroid “ʻOumuamua” that has entered the Solar System from interstellar space. Observations from ESO’s Very Large Telescope in Chile and other observatories around the world show that this unique object was traveling through space for millions of years before its chance encounter with our star system. It appears to be a dark, reddish, highly-elongated rocky or high-metal-content object.