In summer 2026, a substantial iceberg calved from Petermann Glacier in northwest Greenland and swiftly drifted into Nares Strait, colliding with an island along the way.
Experts are analyzing decades of images from Landsat satellites for clues about how the iconic birds have responded to sea ice disruptions in the past.
The drying of the massive lake exposed playas that became the setting for feats of engineering and technological ingenuity, as well as epic tales of exploration and desperation.