From Hawaii’s flowing lava to Alaska’s smoldering peaks, these U.S. states are home to the most active volcanoes, shaping ...

As people from around the world are captivated by episodic lava fountaining during the ongoing Kilauea eruption in Halema‘uma ...

Fifty-five years ago, on April 22, 1970, the world took note of its burning rivers and acrid air. An overdue shift in ...

Fifty-five years ago, on April 22, 1970, the world took note of its burning rivers and acrid air. An overdue shift in ...

Nearly 70% of Hawaii businesses have been “significantly” affected by President Donald Trump’s tariffs, and 27% have been ...

Nour Malas was an editor on the Health and Science team at The Wall Street Journal. She was previously a national reporter covering the U.S. West, and a foreign reporter covering the Middle East. She ...

As a Hawaii local born and raised in Maui, some of the best things to do here include hiking Twin Falls, but I'd skip cliff ...

At the core of the VTF are two extremely precise devices called Fabry-Pérot interferometers. These instruments scan the sun’s ...

Lava fountains from a fissure in the Northeast Rift Zone of Mauna Loa during the 2022 eruption. It was the first time in 38 ...

Janet Putney of Columbus took this photo of the coastline and Hōlei Sea Arch at the end of Chain of Craters Road in Hawaii ...

The Institut für Sonnenphysik (KIS) located in Freiburg, Germany, has installed a high-precision measuring instrument for the ...

The telescope has been installed with the world's largest spectro-polarimeter, the Visible Tunable Filter (VTF).