Oileán Ruaidh (pronounced "ill-lawn roo-ah") is a rock discovered on Mars in September 2010 by the Opportunity rover. It is a 45 centimeter wide dark rock that is thought to be an iron meteorite. It was given the name Oileán Ruaidh ("Red Island") after the Irish language name of Oileán Ruaidh island in County Donegal in Ireland. See also External links Mars Rover Opportunity Approaching Possible Meteorite Mars Exploration Rover mission Meteorites found on Mars Rocks on Mars Iron meteorites