Osaka University

Osaka University, or Handai, is a public research university located in Osaka Prefecture, Japan. It was the sixth Imperial Universities in Japan, one of the Designated National University and selected as a Top Type university of Top Global University Project by the Japanese government. It is usually ranked among the top three universities in Japan, along with the University of Tokyo and Kyoto University. It is ranked third overall among Japanese universities and 71st worldwide in the 2020 QS World University Rankings. Osaka University was one of earliest modern university in Japan at its founding in 1931. However, the history of the institution includes much older predecessors in Osaka such as the Kaitokudō founded in 1724 and the Tekijuku founded in 1838.

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Cold planets exist throughout the galaxy, even in the galactic bulge. Researchers led by Osaka University and NASA have used gravitational microlensing to detect cold planets similar to Jupiter and Neptune throughout the Milky Way, from the galactic disk to the galactic bulge.