A pioneering deep-sea robot made by Massachusetts researchers has been lost off the coast of Chile. (www.newsvine.com)

Audio recordings apparently show that the pilots of a tugboat and tanker that collided in a Gulf of Mexico waterway in Texas were aware their vessels were close but unaware they were about to collide. (www.newsvine.com)

A 4.4-magnitude earthquake struck Hawaii on Monday evening, according to the U.S. Geological Survey. (rss.cnn.com)