This astronaut photograph is centered on Yellowstone Lake, a popular camping and fishing location within the National Park. The lake basin includes part of the youngest caldera and has an area of 352 square kilometers (136 square miles).
Published Sep 5, 2005
Established in 1872, it was the first national park in the United States, and perhaps the world. Its geological and biological wonders have led international groups to declare it a world heritage site and a biosphere reserve.
Published Apr 17, 2016
January 2012 marks the 100th anniversary of the Hawaiian Volcano Observatory, situated on the rim of Kilauea Caldera.
Published Jan 31, 2012
Visible ash and lava confirm the eruption of Pavlof Volcano, in Alaska’s Aleutian Arc.
Published May 15, 2013
More than 20 years after intense fire scorched this national park, the ecosystem is still recovering.
Published Jan 4, 2012
For the past several weeks, a swarm of earthquakes has shaken the ground near Hawthorne, Nevada.
Published Apr 28, 2011
The smoke plume from the Arnica Fire is reflected in Yellowstone Lake in this astronaut photo from September 24, 2009.
Published Oct 12, 2009
A new study has found a link between the effects of climate change, the productivity of grasslands, and the proliferation of bison in Yellowstone National Park.
Published Mar 12, 2020
Magma rising within this volcano (along the border between Chile and Argentina) led to explosions and a plume of volcanic gases.
Published Jan 7, 2013
The glacier-covered Redoubt Volcano is one of many that line Alaska’s southern shores. In late January 2009, the volcano started to rumble once again.
Published Feb 11, 2009
