Galacticus is an open source, freely available semi-analytic model of galaxy formation...more


February 20, 2014: A short tutorial on postprocessing stellar spectra in Galacticus.

August 26, 2013: A Galacticus executable binary is now available for Mac OS10.8.

July 16, 2013: Yesterday's updates to Galacticus v0.9.2 introduce dependencies on three additional Perl modules. If you update and recompile Galacticus v0.9.2 you'll first need to install: XML::SAX, XML::Validator::Schema, and List::Uniq. See pages 7 & 8 of the Galacticus documentation at for more details.

October 21, 2012:
Galacticus v0.9.1 is now officially released. Read about what's new here.

January 26, 2012:
Galacticus now stores metadata in PDFs and other figures to allow those results to be reproduce with precision at a later date.

November 8, 2011:
Galacticus now has a Google+ page!

October 30, 2011: New parameters for Galacticus v0.9.1 are now available.

October 16, 2011:
Watch a fly-through of 9000Mpc of cosmic evolution!

August 25, 2011: Installation scripts for Galacticus v0.9.0 and v0.9.1 are now available.

August 23, 2011: Galacticus v0.9.0 is now officially released. Read about what's new here.

Recent Blog Posts