Imagine the Universe!
Imagine Home  |   Teachers' Corner   |  

8. True or False

How well do you know the gamma-ray Universe and gamma-ray bursts? After reading the information in this booklet and after surfing the Web sites give in the Resource List, test your knowledge! Which of the following statements are true and which are false? Be prepared to defend your responses.

 

a. "If we could harness 1% of the energy emitted during a typical GRB, the Earth would have enough energy to last over 1,000,000,000,000,000 years, based on current usage statistics."

______________________________________________________

______________________________________________________

______________________________________________________

______________________________________________________

______________________________________________________

b. "Because of its enormous power, GRB 990123 posed a significant health threat to humans on Earth."

______________________________________________________

______________________________________________________

______________________________________________________

______________________________________________________

______________________________________________________

c. "The Earth emits gamma-rays that can be detected by orbiting satellites."

______________________________________________________

______________________________________________________

______________________________________________________

______________________________________________________

______________________________________________________

Back Index Next

Download a pdf version.

If words seem to be missing from the articles, please read this.

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
Project Leader: Dr. Barbara Mattson
Curator: Meredith Gibb
Responsible NASA Official: Phil Newman
All material on this site has been created and updated between 1997-2014.
This page last updated: Thursday, 21-Nov-2002 12:11:31 EST