hewies user interface - 3D scientific visualisation tool
CloudSat and CALIPSO plotting tool
Real-time interactive 3D graphics API for scientific simulations
Interactive visualization of plate tectonics.
Geostatistics and geosciences modeling software
PyMOL is an OpenGL based molecular visualization system
Python spreadsheet application
http://www.sciencedirect.com/science/article/pii/S1047847711003492
PyVE is image analysis and visualization environment
Morphometric analysis and visualization of the 3D structure of neurons
Image processing framework to integrate EM software packages.