Nasa: Imagine the Universe: The History of Gamma Ray Astronomy

Four fabulous activities immerse amateur astronomers into measuring objects that we cannot handle. The experiences are applied to NASA's Space Interferometry Mission, which will take measurements of planets around stars other than our...

According to Carl Sagan, we are all made of star particles. The second video in a series of 16 explains what happened after the big bang. It discusses cosmic background radiation, chemistry, galaxies, heavy elements, and the creation of...

Frequently asked questions are answered about gamma rays.

Describes quasars as being classified within the category of an active galaxy. A description of the emergence of high-energy. Definitions of key words are provided.gamma-ray quasars as an important component of the gamma-ray sky.

Supernovae are divided into two basic physical types, including a description of supernova types and how they are classified based on the existence of hydrogen spectral lines. Definitions of key terms are provided.

A brief description of supernova remnants with many embedded links to help define terms used in the description. The specific topics are age and the importance of remnants to us and the types. Definitions of key words are provided.

Your young scientists will see that accidents and making mistakes are a common theme in science as they are tantalized by this short video clip that details the mechanics and history of the CT scanner and x-ray machine. 

The mind-bending concept of space-time is further discussed by two cartoon scientists in this second of three animated films. Assign each part and the accompanying Think questions as homework or as an enrichment when working on motion...

This helpful site provides everything you want to know about studying the universe. Take a look at the tools and methods scientists use to study the universe, discover some of the objects that make up our universe, learn how scientists...

Here's the place to find support on a range of space-based astronomical topics. Check the main topics covered and the archived files, or send an email to the experts!