Portsmouth Harbour was closed to all vessels on Saturday September 10, 2016 due to an unexploded torpedo found in the bay, according to reports.
Train, ferry and pedestrian routes were also closed temporarily as the Royal Navy removed the torpedo and destroyed it in a controlled explosion out to sea.
Representatives of Wightlink ferry service announced the ports re-opening at 06.25 the same morning, the discovery having been made at 05.00 am.
Unexploded torpedoes are common from World War Two, as many torpedoes were badly designed and manufactured.
Early in March 2016, the University of Portsmouth announced the introduction of a new centre of excellence for satellite data, focusing on maritime, marine and autonomous systems.