You're looking at the "Projects" list of other projects on the site. Spike itself is written in Common Lisp. You can read some of the papers on the "technical d

You're looking at the "Projects" list of other projects on the site. Spike itself is written in Common Lisp. You can read some of the papers on the "technical details" of Spike page for confirmation: http://www.stsci.edu/institute/software_hardware/spike/details http://www.stsci.edu/institute/software_hardware/spike/detai...