NGC 4194,或稱為美杜莎星系併吞者(Medusa merger),是在天球上位於大熊座的一對交互作用星系。 NGC 4194的中央有一個直徑約500 ly(150 pc)的富含氣體的極高速恆星形成區域,被稱為美杜莎之眼(Eye of Medusa)。 哈伯太空望遠鏡拍攝NGC 4194。 (NED
Olympic agree merger. Reuters. February 22, 2010 [22 February 2010]. (原始内容存档于2010-03-29). Staff. Aegean, Olympic Air Announce Merger. Capital.gr. February
signs merger with Iberia. IBTimes. 8 April 2010 [11 April 2010]. (原始内容存档于2013-11-03). Vamburkar, Meenal. British Airways and Iberia agree on merger. New
Never Lies: Meet the Discovery CFO Targeting $3B in Savings in the Warner Merger. The Hollywood Reporter. 2021-06-17 [2022-04-04]. (原始内容存档于2022-05-26).