Topic: heavy metals

Dark chocolate pieces and cocoa beans (Getty Images/Caterina Oltean/500px)

Study: Metals found in dark chocolate

Michael La Corte
Dead fish on the dry lake bed of Little Washoe Lake on July 15, 2021 in Washoe City, Nevada. According to the Nevada Department of Wildlife, the lake dried up because of prolonged drought. Water levels were also adversely affected by a 2017 storm that washed out a diversion on Brown creek. (David Calvert/Getty Images)

The Great Salt Lake's looming die-off

Eric Schank
This image from NASA's Hubble Space Telescope shows the Crab Nebula, the remnant of a supernova explosion with a rapidly spinning neutron star embedded in its center. In October 2017, astronomers detected the merger of two neutron stars some 130 million light-years away. (Getty/NASA)

How neutron stars make gold

Keith A. Spencer