Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Support PBS Shop PBS Search PBS
USA (1889 - 1953)
Edwin Powell Hubble profoundly changed astronomers' understanding of the nature of the universe by demonstrating the existence of other galaxies besides the Milky Way. He also discovered that the degree of redshift observed in light coming from a galaxy increased in proportion to the distance of that galaxy from the Milky Way. This became known as Hubble's law, and would help establish that the universe is expanding.

Galileo: Frequently Asked Questions
by Dr. Jim Lattis, University of Wisconsin-Madison

Please click on an item to reveal the answer.




La Película | Video | Para Maestros | Guía de Programación | Noticias | Programa Planetario
Boletín | Calendario IYA | Recursos | Glosario | Contáctenos | Mapa del Sitio

© 2009 Interstellar Studios. All rights reserved.