Cosmic Ray Clocks

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Author:

Daniel Hortert

Subject:

Science and Technology

Institution Name:

NASA

Collection:

NASA

Grade Level:

Secondary

Abstract:

This educational brief provides an overview of the concepts of radioactivity, basic particle physics, and the use of radioactive decay as a mechanism to date our galaxy.

Course Type:

Learning Module

Languages:

English

Material Type:

Readings

Media Format:

Graphics/Photos, Text/HTML

Conditions of Use:

Public Domain
NASA still images; audio files; video; and computer files used in the rendition of 3-dimensional models, such as texture maps and polygon data in any format, generally are not copyrighted. You may use NASA imagery, video, audio, and data files used for the rendition of 3-dimensional models for educational or informational purposes, including photo collections, textbooks, public exhibits, computer graphical simulations, and Internet Web pages. This general permission extends to personal Web pages.