Coltrane, a jazz virtuoso who devoted much of her life to a spiritual journey, is a beacon for today’s artists. An exhibition at the Hammer Museum shows why. By Siddhartha Mitter A jury found ...

Eutrophication is a leading cause of impairment of many freshwater and coastal marine ecosystems in the world. Why should we worry about eutrophication and how is this problem managed ...

Mine operations (including the production and sale of gold), mine development, and exploration and evaluation activities.