Today, 29 years ago, on July 19, 1996 (Lunar Calendar, June 4, 1996), American scientists claimed there could be ocean on Jupiter¡¯s satellite. American scientists said there is a high probability of ocean on Jupiter¡¯s satellite ¡°EUROPA¡±. Professor Squire presented a report today at the 31st meeting of the Space Research Commission that he concluded this by analyzing the images of the Jupiter satellite taken by the U.S. ¡°Voyager¡±. These images suggest that the surface of ¡°EUROPA¡± has an appearance similar to the Northern Ocean, and the surface of the satellite can hardly see a meteor collision pit, so the surface of the satellite is likely to have ocean under the ice cover.