Antarctica: What happened to Halley Bay's penguins?
Peter Fretwell counts penguins from space and has watched the collapse of an emperor colony.
World's biggest iceberg drifts north
Since breaking off Antarctica's Larsen C Ice Shelf, the giant berg known as A-68 has slowly drifted north.
Giant iceberg: The life uncovered
Scientists will look for new species living on the seafloor in a location previously covered by ice.
Expedition investigates Larsen Ice Shelf
The Weddell Sea Expedition is exploring the Larsen C Ice Shelf, which produced a giant iceberg in 2017.