42 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 28 Dec 2012

1.5 MB PDF file, 48 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

16 MB PDF, 129 pages
Requires Adobe Reader
Best when printed in color on 11 x 17 paper.
It will print on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

11.3 MB PDF, 286 pages
Requires Adobe Reader
Best when printed in color on 11 x 17 paper.
It will print on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

Interview (10 minutes, 40 seconds)
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

799 KB PDF file, 2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

1 page
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

332 KB and 861 KB, 10 pages
Requires Adobe Reader
Poster is 33 x 27.5 inches.
Print nine pages on 8.5 x 11 paper.
Most recent update: 14 Jul 2011

Recreate Galileo's historic 17th Century observations of Jupiter's moons.
1.1 MB PDF file, 21 Pages

Most recent update: 14 Jul 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

Thirteen trading cards, available as separate files or together.
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

680 KB PDF, 3 pages
Requires Adobe Reader
Best when printed in color on 8 1/2 x 11 paper.

Most recent update: 14 Jul 2011

24 MB PDF, 282 pages
Requires Adobe Reader
Best when printed in color on 11 x 17 paper.
It will print on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

11 MB PDF, 154 pages
Requires Adobe Reader
Best when printed in color on 11 x 17 paper.
It will print on 8 1/2 x 11 paper.
Most recent update: 14 Jul 2011

JPG file
1600x1600 pixels
Most recent update: 14 Jul 2011

2 Pages
Best when printed on 8 1/2 x 11 paper.
Most recent update: 11 May 2011

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 26 May 2010

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 26 May 2010