
Listening for pings in the ocean —
The Australian Defense Vessel Ocean Shield leaves port for the suspected Flight 370 search zone, bringing sophisticated equipment to listen for the flight data recorder's locator beacon.

Underwater robot —
This yellow object is the Bluefin-21, an underwater drone that can scour the ocean bed, looking for signs of wreckage.

Towed pinger locator —
The Ocean Shield is also bringing this towed pinger locator, a giant underwater microphone that will listen for the pings from the flight recorders.

The "Thunder" —
To cover this story, CNN equipped the Thunder, a chartered fishing boat with the technology to broadcast from the Indian Ocean.

Live from the ocean —
This stabilized satellite antennae, known as a Marine BGAN, automatically compensates for the movement of the boat, allowing CNN to go live while on the water.

CNN's seafaring studio —
CNN senior producer David Molko prepares for one of dozens of live shots from the aft deck of the Thunder.

Preparing for the search —
CNN's Will Ripley interviews Captain Ray Ruby of Down Under Marine Charters about conditions in the southern Indian Ocean.

An uncertain journey —
Australian Defense Vessel Ocean Shield prepares to sail for the search zone, with the pinger locator and underwater drone already on board.