White, pink, yellow and blue opals hide in the rocky landscape of Spencer Opal Mines, the largest-producing precious opal mine in the United States.

An app called Opal finally succeeded at curbing my time spent on social media through a combination of mild friction, ...

Bill Trofholz of Elyria was one of the people who hit golf balls Saturday from near the top of Happy Jack Peak. He drove ...

To avoid the killer high temperatures of up to 55C, the majority of this town's 2,500 residents now live underground.

The greatest mathematician-cum-singer-songwriter of all time Obituary The field of satirists and hit singer-songwriters who ...

When I’m stressed, I don’t meditate, but I move. Exercise helps. I also take homeopathic medicine — something called Pic Ac ...

A mum has revealed what life is like living in a $277k underground home to escape Australia’s brutal 55C heat. Sabrina Troisi, 38, is originally from Stuttgart, Germany, but now lives in Coober Pedy – ...

The Made in Chelsea star watches US sports first thing in the morning, breakfasts late and always says thank you before bed ...

The internet is overflowing with fascinating things, but finding them can feel like swinging a metal detector across a ...

The internet is overflowing with fascinating things, but finding them can feel like swinging a metal detector across a ...

OPAL Fuels Inc. (NASDAQ:OPAL) is one of the cheap penny stocks to buy now. During mid-May, OPAL Fuels announced a new joint venture with an affiliate of Republic Services Inc. (NYSE:RSG).

The troubled Dartbrook coal mine has plunged into receivership and administration just months after it reopened following years of disuse.