USS Johnston: Sub dives to deepest-known shipwreck A submersible has reached the USS Johnston, which lies 6.5km beneath the waves in the Pacific. Source
Then and now: Rising temperatures threaten corals In a monthly feature, we explain how warming waters threaten the survival of a wonder of the seas. Source
How satellite images are helping one country hand out cash Togo has found a new way to send emergency cash to people struggling in the pandemic. Source