Professor Amamori

Professor Amamori is the head scientist at the Tsukuba Observatory. He is Hajimes uncle though Hajimes father is his younger brother in the TV series and his older brother in the film. He became Hajimes guardian after his parents were both killed in an explosion. Amamori discovered the 10th planet LaMetal and determined it would collide with the Earth. At first he had plenty of hair but the discovery caused him to begin losing hair though in the TV series he keeps all his hair. Source: Wikipedia