Cosmic processes responsible for the formation of black holes in the early universe are loud gravitational-wave sources. If these early black holes still fill the cosmos, gravitational-wave observations will tell.
Information about a class of simple model universes, each an expanding cosmos filled with gravitational waves
What is Einstein Online?
Einstein Online is a web portal with comprehensible information on Einstein's theories of relativity and their most exciting applications from the smallest particles to cosmology.
Einstein Online is provided by the
Max Planck Institute for Gravitational Physics
(Albert-Einstein-Institut)
Includes information on our authors and contributing Institutions, and a brief history of the website.
More than 400 entries from "absolute zero" to "XMM Newton" - whenever you see this type of link on an Einstein Online page, it'll take you to an entry in our relativistic dictionary.
