In the 1920s this American astronomer provided the earliest evidence that the universe was expanding
In 1929, American astronomer Edwin Powell Hubble made what has 
been ... by the big bang have shown that matter in the early universe was very 
evenly... [DOC] [TLE] The Origin of the Universe, Earth, and Life | Science and ... [PAR] In the late 1920s the American astronomer Edwin Hubble made a very interesting 
... Hubble's hypothesis of an expanding universe leads to certain deductions.