After decades of debate, researchers say that they have found the clearest evidence yet for this rare form of carbon ...

Researchers have synthesized millimetre-scale hexagonal diamond, a crystal structure so elusive that many physicists doubted ...

Oval engagement rings are a classic choice for a reason. We break down everything to know about the popular cut from its ...

Researchers named it lonsdaleite, after crystallographer Kathleen Lonsdale, but for decades, no one was sure it truly existed. For 60 years, the material had only been reported in meteorite impact ...