Complex sentence: The craft completed its fly-by of asteroid 2867 Šteins in September 2008 and of 21 Lutetia in July 2010, and, as of 20 January 2014, has woken up from hibernation mode and is expected to continue to its final destination.
Split into simpler sentences: The craft completed its fly-by of asteroid 2867 Šteins in September 2008 and of 21 Lutetia in July 2010. On 20 January 2014, it woke up from hibernation mode; it is expected to continue to its final destination.