This is the project site for the °×С½ãÂÛ̳-led (P.I. Prof. Raman Prinja) Cygnus OB2 Radio Survey or COBRaS.Ìý The COBRaS project has been designed to exploit the capabilities of the e-MERLIN array of radio telescopes to probe the Cygnus OB2 young massive-star cluster.