NASA still images, audio files and video generally are not copyrighted. You may use NASA imagery, video and audio material for educational or informational purposes, including photo collections, textbooks, public exhibits and Internet Web pages. This general permission extends to personal Web pages. This image was produced by cropping one NASA image. It shows the bright-line spectrum produced by hydrogen.

Click this LINK to visit the original image and attribution information. Right click on the image to save the 800px teaching JPEG.



NASA still images, audio files and video generally are not copyrighted. You may use NASA imagery, video and audio material for educational or informational purposes, including photo collections, textbooks, public exhibits and Internet Web pages. This general permission extends to personal Web pages. This image was produced by cropping one NASA image. It shows the bright-line spectrum produced by hydrogen.