A big, messy surprise greeted Yellowstone National Park early Saturday morning, just as winter officially began. At around ...

Learn why Yellowstone mysteriously does not produce sulfur dioxide, and what it means for volcanic unrest.

Across the United States, scientists who track the country’s most powerful volcano systems are picking up new signals that deserve close attention, but not panic. From the restless magma reservoir ...

Analysis of hundreds of single-cell genomes from Yellowstone National Park shows bacterial species are less cohesive than previously thought.

National parks across the United States vary dramatically from desert to beach, forest to mountains, offering some of the ...

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk population, which had decimated the plant community, in ...