diff --git a/docs/science.html b/docs/science.html
index d5686e0dd50..011472be572 100644
--- a/docs/science.html
+++ b/docs/science.html
@@ -40,9 +40,13 @@
 	- molecular modeling and analysis
 	</li><li><a href="http://www.avatar.se/molscript/" target="_parent">Molscript</a> - molecular
 	modeling
-	</li><li><a href="http://www.opendx.org/" target="_parent">OpenDX</a> - Data visualization
+	</li>
+	<li><a href="http://www.opendx.org/" target="_parent">OpenDX</a> - Data visualization
 	system
-	</li><li><a href="http://mesa3d.sourceforge.net/notfound.html">PHLEX</a> - Finite element vis
+	</li>
+	<li><a href="http://orsa.sourceforge.net/" target="_parent">ORSA</a> - An interactive tool for Celestial Mechanics
+	</li>
+	<li><a href="http://mesa3d.sourceforge.net/notfound.html">PHLEX</a> - Finite element vis
 	</li><li><a href="http://root.cern.ch/" target="_parent">ROOT</a> - Object Oriented Data
 	Analysis Framework
 	</li><li><a href="http://www.slffea.com/" target="_parent">SLFFEA</a> - GNU finite element