「宇宙人の船は地球を訪問済み」 米ハーバード大の天文学者が新著　写真3枚　国際ニュース：AFPBB News https://www.afpbb.com/articles/-/3330704

November 7, 2018
‘Oumuamua, oh my! Was interstellar object actually an alien solar sail? Not so fast https://www.yahoo.com/tech/oumuamua-oh-interstellar-object-actually-225825249.html