Fugitive treasure hunter arrested

A treasure hunter on the run for two years is now in handcuffs. Tommy Thompson gained notoriety in 1988, when he found the sunken ship "S S Central America," nicknamed the "ship of gold." The ship went down in 1857, taking with it nearly 500 passengers, and thousands of pounds of gold. We're joined now by "48 hours" Crimesider reporter Michelle Sigona.

Robot explores volcanic depths

A small rolling robot may be able to give scientists an idea of the way the magma travels up a volcano during a eruption. 'Volcano Bot Two' can go as much as 100 meters deep. It has an infrared imaging camera that can send live video to the surface while scientists remotely navigate it.

Kaboom goes the steel plant

A steel plant in Sparrows Point, Maryland imploded Wed. The structure, an old furnace, used to be 320 feet tall and weighed approximately 8 million pounds. It took 94 separate explosive charges at 12 points to bring the structure down. CBSN's Don Dahler and Elaine Quijano report.

Freaky shark found down under

A rarely seen shark species dating back 80 million years was spotted by fisherman in Australia. As CBSN Vlad Duthiers reports, the frilled shark is one of the most primitive on earth.