Formation and evolution of coronal rain observed by SDO/AIA on February 22, 2012 Z. Vashalomidze, V. Kukhianidze, T. V. Zaqarashvili, R. Oliver, B. Shergelashvili, G. Ramishvili, S. Poedts and P. De Causmaecker A&A, 577 (2015) A136 Published online: 19 May 2015 DOI: 10.1051/0004-6361/201424101