Software (Subscribe)
Links
Universe Viewer
http://home.gna.org/universeviewer/
A software for visualization and geodetic handling of astronomical objects, in particular high-redshift structures such as quasars.
iCosmos Cosmology Calculator
Enter standard cosmological parameters (such as the overall matter density, the cosmological constant, and the redshift), and this calculator will present a number of cosmological quantities (particularly the various distances), including some helpful graphical representations. By Mihran Vardanyan.