2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 23 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 23 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 23 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 23 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 23 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 23 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 23 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 23 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 23 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 19 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 19 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 19 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 19 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 19 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 19 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 19 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 19 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 19 Nov 2009

799 KB PDF file, 2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 18 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 18 Nov 2009

42 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 18 Nov 2009

2 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 18 Nov 2009

Interview (10 minutes, 40 seconds)
Most recent update: 14 May 2009

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: 16 Mar 2009

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

Most recent update: 3 Feb 2009

4 MB PDF, 76 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: 30 Dec 2008

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: 31 Mar 2008

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: 8 Feb 2008

JPG file
1600x1600 pixels
Most recent update: 16 May 2007

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: 18 May 2006

5.32 MB PDF, 112 pages
Requires Adobe Reader
Print on 8.5 x 11 paper.
Most recent update: 18 May 2006

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 Feb 2006

1.5 MB PDF file, 48 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 13 Feb 2006

2.46 MB PDF, 84 pages
Requires Adobe Reader
Print on 8.5 x 11 paper.
Most recent update: 17 Jun 2004

15.31 MB PDF, 116 pages
Requires Adobe Reader
Print on 8.5 x 11 paper.
Most recent update: 17 Jun 2004

1.56 MB PDF file, 64 pages
Requires Adobe Reader
Best when printed on 8 1/2 x 11 paper.
Most recent update: 17 Jun 2004