Northern rockhopper penguin
A smartphone with Facebook logo
A woman walks in a park in Germany between a flock of Canada geese
The U.S. Coast Guard National Security Cutter Bertholf
More than 180 countries remain committed to the 2015 Paris accord
Kang Nara prepares to film a YouTube video
A sample of an autonomous boat.
Future COVID-19 vaccines need to be kept in cold storage.