سوال : The discovery that "the universe is expanding" was revealed in which year and by whom?
جواب :
Edwin Powell Hubble (1889-1953)
In 1929, however, Edwin Hubble published his discovery that that the universe is expanding at a possibly exponential rate. This is the basis for understanding
that the universe is expanding
منبع : http://en.wikipedia.org/wiki/History_of_physics
http://www.edwinhubble.com/
لینک مسابقه : http://tebyan.net/index.aspx?pid=29855&questionType=5