A paper published this year in Physical Review Letters (2012, 109, 041101), Evidence of Galaxy Cluster Motions with the Kinematic Sunyaev-Zel’dovich Effect, represented a joint collaboration between the Atacama Cosmology Telescope and the SDSS-III BOSS survey. This work presented the first detection of the kinetic Sunyaev-Zeldovich effect.

This paper has just been recognized by Physics World as one of the Top 10 Breakthroughs of 2012:

http://physicsworld.com/cws/article/news/2012/dec/14/physics-world-reveals-its-top-10-breakthroughs-for-2012