In 2010 and 2011, many big eruptions (Eyjafjallajökull, Merapi, Kirishima, Grimsvotn, Cordon Caulle and Nabro) have put a lot of aerosols and sulfur dioxide into the atmosphere. As a result, the total lunar eclipse of 15 June 2011 was one of the darkest of the last decades (photo by Marco Fulle, Sistiana). |