Show Summary Details

p. 162. Stepping stones to the Universelocked

  • John Gribbin

Abstract

‘Stepping stones to the Universe’ outlines the work of Edwin Hubble. Hubble was convinced that spiral nebulae were separate galaxies, and used the advances in telescopy and photography during the 1920s to prove himself right. He identified different shapes of galaxy: spirals (comprising several different subtypes), and ellipticals, with no obvious internal structure. Hubble's discovery of Cepheids in Andromeda proved that the nebula was in fact a galaxy much like our own, and was very far away. Hubble collaborated with Milton Humason to find a link between redshift and distance, and used this to establish the Hubble constant.

Access to the complete content on Very Short Introductions online requires a subscription or purchase. Public users are able to search the site and view the abstracts and keywords for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can't find the answer there, please contact us.