In 2002, documentarian Anne MacGregor and Phil Richardson, a physical oceanographer at the Woods Hole Oceanographic Institution in Massachusetts, speculated that the Mary Celeste was abandoned the day after the log’s final entry – November 25, 1872 – perhaps because the ship was taking on water and Briggs had spotted land. Another theory was put forward by Dr. Andrea Sella from University College London in 2006, suggesting an explosion aboard led Briggs to abandon ship.