Why did they form at that time? Astronomers know from observing distant exploding stars that the size of the universe has ...
A 37.4-carat pink-and-colorless diamond found in Botswana’s Karowe mine reveals a rare two-stage formation deep within ...
Experts at a laboratory in Botswana managed by the Gemological Institute of America recently examined an extraordinary ...
Sunday’s robbery at the Paris museum could be the latest example of thieves targeting museums for jewels and precious metals to break down and sell on.
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