Imagine the Universe!
Imagine Home  |   Ask an Astrophysicist  |  
Ask an Astrophysicist
Library of Past Questions

Cosmic Rays

First time visitors: Please be sure to read our main page!

  • Check out the resource links. These are the sites we often point to in answering your questions.
  • Browse through the library of questions below.

Resources for this Topic

  1. Cosmicopia (

  2. Cosmicopia "Ask Us" page (

Library of Past Questions and Answers

    Cosmic Rays

  1. Why is the study of cosmic rays important?

  2. Who first discovered anti-matter?

  3. What is the effect of cosmic rays on other bodies? How do they get accelerated?

  4. Could ozone depletion be caused by cosmic rays?

  5. What are the different compositions and origins of Cosmic Rays?

  6. How do cosmic rays produce Lithium?

  7. Is there a limit to how energetic cosmic rays can be?

  8. Are there any non-solar cosmic-ray cycles?

  9. Can Cosmic Rays be seen?

  10. What do Cosmic Rays tell us about potentially Earth-destroying black holes?

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