Scientists find 'missing ingredient' for pink diamonds

Scientists said on Tuesday they have found the "missing ingredient" for pink diamonds, some of the world's most expensive stones due their rarity and beauty, and the discovery could help find more.

Long-lasting La Niña events more common over past century

Multiyear La Niña events have become more common over the last 100 years, according to a new study led by University of Hawai'i (UH) at Mānoa atmospheric scientist Bin Wang. Five out of six La Niña events since 1998 have ...

Scientists rediscover small Brazil tree, 185 years on

A species of small holly tree that was last seen nearly two centuries ago and was feared extinct has been rediscovered pluckily clinging to life in an urban area in northeastern Brazil, scientists said Tuesday.

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