Once completed, Tianqin will become an important

 tool to search for and detect black holes of all sizes and wavelengths in the n

ext two decades,” Wu Qingwen, a professor at the School of Physics of Huazhong Uni

versity of Science and Technology in Wuhan, Hubei province, said on Thursday.

On Wednesday, the Event Horizon Telescope, a global array of e

ight ground-based radio telescopes, revealed the first-ever image of a black hole.

Wu was one of the more than 200 astronomers worldwi

de involved in the EHT collaboration, which captured the first vi

sible representation of what are considered the most extreme objects in the universe.

International collaboration is vital for astronomical observations, Wu said.