Zhang+Yuzhe



=Zhang Yuzhe= =He was born on 1902 and died in 1986 in China.= =﻿He was born in Minhou,Fujian province,China.= =﻿His important contribution to science was following and calculating the orbits of comets and minor planets.= =﻿His three key events were, he found an asteroid in 1928 and assigned the number to be 1125, he named it China, but then it got "lost".He found another asterid in 1957, he named it 1125 China. He contributed to the lauches of China's first space satellite in 1970 and first manned space flight in 2003.=