Scientists said the juvenile bar-tailed godwit flew 8,425 miles in 11 days, a nonstop Pacific crossing tracked by a tiny solar-powered satellite transmitter.

NASA launched two sounding rocket missions from Alaska to measure auroral electrical currents and study geomagnetic storm impacts on Earth’s upper atmosphere and space-based systems.

Two fossil bones long tagged as woolly mammoth have now been confirmed as whales after tests overturned their museum label. The switch erases a would-be record for mammoths and leaves scientists ...

From the Southeast rainforest to the Arctic tundra, warming conditions are creating a variety of Alaska landslide hazards, some of them posing extreme hazards to human safety and others creating ...