Hubble Edwin Powell

Hub·ble

 (hŭb′əl), Edwin Powell 1889-1953.

American astronomer who discovered (1929) that the velocities of galaxies increase with distance.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Hub·ble

(hŭb′əl), Edwin Powell 1889-1953.

American astronomer. He demonstrated that there are galaxies beyond our own and that they are receding from ours, bolstering the theory that the universe is expanding. Hubble also established the first measurements for the age and radius of the known universe. His methods for determining them remain in use today. See Note at Doppler effect.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.