Imagine the Universe!
Imagine Home | Science | Advanced Science | 

Pulsars

Pulsars were first discovered by Jocelyn Bell, a graduate student, in 1967 in the radio region of the electromagnetic spectrum. At first, it was thought that such regular, rapid signals could not be natural in origin. However, intelligent beings were soon replaced by neutron stars as the explanation.

Last Modified: October 2004

Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

The Imagine Team
Acting Project Leader: Dr. Barbara Mattson
All material on this site has been created and updated between 1997-2012.

DVD Table of Contents
Educator's Index