Opal evaluation should be done under controlled lighting on a dark background. Rotating the opal against a background helps when you’re determining its type and evaluating its play-of-color and cut.

At close: 28 January at 16:00:00 GMT-5 ...

WHITE PLAINS, N.Y.--(BUSINESS WIRE)--OPAL Fuels Inc. (Nasdaq: OPAL), today announced the appointment of Kazi Hasan as Chief Financial Officer, effective February 3, 2025. Mr. Hasan succeeds Scott ...

Here’s how it works. Below, you’ll find all the latest confirmed information surrounding the Galaxy S25’s price, release date, design, cameras, features, and much more. Pre-orders live now ...

"Interestingly, the quasar powering this massive radio jet does not have an extreme black hole mass compared to other quasars." Astronomers have detected the largest black hole-launched jet ever ...

Add articles to your saved list and come back to them any time. The collection of up to $220 million in public transport fares in NSW could be at risk if the private operator of the Opal ticketing ...

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Jan. 6, 2025 — Physicists have proposed a solution to a long-standing puzzle surrounding the GD-1 stellar stream, one of the most well-studied streams within the galactic halo of the Milky ...

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