Sejong University professor Chae Kyu-hyun discovers evidence for modified Newtonian mechanics of spiral galaxy rotation curve
![[국제]”The Ramsay attack is counterproductive”…”Thesis’Kanto Korean massacre’ modified”](https://image.ytn.co.kr/general/jpg/2021/0221/202102211005479968_t.jpg "[국제]”The Ramsay attack is counterproductive”…”Thesis’Kanto Korean massacre’ modified”")
