An expedition off the coast of Florida will explore a mysterious sinkhole that extends 425 feet beneath the ocean floor. Next month, the National Oceanic and Atmospheric Administration (NOAA) will explore the crevasse, an underwater sinkhole referred to as a 'blue hole', for the first time. The contents of blue holes are still fairly mysterious as are their frequency and typical location. The NOAA says that the year-long expedition will being in August and explore a 425-foot deep blue hole known as Green Banana - the sinkhole is located 155 feet below the surface. The team will include scientists from Mote Marine Laboratory, Florida Atlantic University, Georgia Institute of Technology and the U.S. Geological Society.

Source: Daily Mail July 21, 2020 20:07 UTC