If you wait long enough, the Thirty Meter Telescope comes around as regularly as the comets astronomers like to observe.

A turbofan engine uses what is called the Brayton cycle, a process similar to a super-powered air pump and heater. The ...

One of the most active volcanoes in the world is gearing up for a spectacular eruption, according to the United States ...

Discover the fascinating phenomenon of volcanic lightning, a dangerous yet intriguing natural display occurring during ...

In 1831, the Sun turned blue, summer vanished, and the world shivered—but no one knew why.

A collaboration between scientists at UC San Diego’s Scripps Institution of Oceanography and the University of Greifswald in Germany has uncovered a powerful new way volcanoes give life to the Earth: ...

Select an option below to continue reading this premium story. Already a Honolulu Star-Advertiser subscriber? Log in now to continue reading. But McKenna, who became acting chief justice when the ...

A hazy cloud that emerged over the active volcano was the result of high winds rather than a new eruption. By Amy Graff and Soumya Karlamangla On the morning of May 18, 1980, the most destructive ...

That came after scientists received reports of a large plume rising above the volcano, which turned out to be volcanic ash from the 1980 Mount St. Helens eruption. “It kind of looks like a brownish ...

Some Pacific Northwesterners woke Tuesday to an unusual sight: A smoky haze shrouded Mount St. Helens, the large, active stratovolcano in Washington state that erupted catastrophically in 1980. But a ...

Mount St. Helens looked like it might be erupting again. Commercial pilots flying in the area Tuesday reported clouds of fine volcanic ash rising into the air above the collapsed dome of the Cascades’ ...