Francium is a radioactive chemical element which is classified among the alkaline earth metals on the periodic table. It is extremely unstable, with a very short half life â approximately 20 minutes â and, as a result, it has few applications outside the realm of scientific research. The bulk of the world's francium is synthesized in labs; it only appears in nature in very small trace amounts, and it is an extremely rare element.
Massive marlin caught off Hawaii coast. A fisherman from Hawaii reeled in giant blue marlin weighing in at 1,368 pounds. CNN affiliate KITV reports.
Size relative to a 6-ft (2-m) man: The strikingly beautiful blue marlin is the largest of the Atlantic marlins and one of the biggest fish in the world.