NASA
Nasa: Imagine the Universe: Gamma Ray Bursts
What is a Gamma-ray Burst? Why do scientists study gamma-ray bursts? Find your answers to these questions as well as view additional resources on this topic.
NASA
Nasa: Imagine the Universe: Welcome to the World of X Ray Astronomy
Site recounts how X-rays were discovered as well as who discovered them. Offers graphics, links to facts on this topic, a quiz, and teacher resources.
NASA
Nasa: Imagine the Universe: Gamma Ray Bursts
Use this site to learn all about gamma-ray bursts. Site provides links to models and other more detailed information, a movie, and links to other resources.