Ancient petroglyphs carved into volcanic rock outside Bishop in the eastern Sierra were recently damaged by vandals, and ...

The experiment showed that the volcanic tuff stones contributed to reducing PV module temperature by up to 23% and achieved a power conversion efficiency of 17.25% and a 6.25% higher power output ...

In the high desert of north-central New Mexico, a 40-minute drive west of Santa Fe, a surreal landscape of eroded volcanic ...

Carved centuries ago from volcanic tuff, they’re believed to embody the deified spirits of ancestors. Sleepless roosters crowed; stray dogs barked. A frigid wind gusted in from Antarctica ...

Authorities are seeking the public's help in finding individuals who desecrated ancient, protected tribal rock carvings near ...