The glacier could be melting at the key points anchoring it to the land.
A third of Antarctica's vast offshore ice shelves would risk collapse into the ocean if the world warms by 4 degrees Celsius (7.2 degrees Fahrenheit) above pre-industrial levels.
Four dead gray whales have washed up in San Francisco Bay in eight days, prompting fears that the species is under threat in the area.
Archaeologists in Saudi Arabia have uncovered bones at a burial site that reveal the domestication of dogs in the area happened much earlier than previously believed.
The 4-lb. (1.8 kilograms) chopper captured its first color photograph on Saturday (April 3), shortly after being lowered to the Martian dirt by the Perseverance rover.