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An Oregon State University researcher who made color history in 2009 with a vivid blue pigment has developed durable, reddish magentas inspired by lunar mineralogy and ancient Egyptian chemistry.

The team also examined sediment structures, mineralogy, diatoms and geochemistry to characterize the depositional record.

Previous studies suggested that Ryugu's sample mineralogy resembled CI chondrites, the most primitive meteorites chemically.

Because its present-day chemistry and mineralogy are virtually unchanged since its formation, it holds clues to the origins and development of rocky planets such as Earth, and could prove central to studies of astrobiology.

Because its present-day chemistry and mineralogy are virtually unchanged since forming some 4.5 billion years ago, it holds valuable clues to the origins and development of rocky planets such as Earth.