ScienceRussian Startup StartRocket Wants To Put Ads In Space By 2021 A Russian startup wants to put ads in space using tiny satellites with reflective sails. The ads would only be visible at night but could be seen from anywhere in the world.by Athena Chan
ScienceHarvard Professor Avi Loeb Justifies Why Interstellar Object ‘Oumuamua Is An Alien Probeby Allan Adamson