Add Yahoo as a preferred source to see more of our stories on Google. Hong Kong Light Pollution Lam Yik Fei/Getty Images Our night sky is rapidly disappearing. At our current rate of dumping excess ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

Astronomers around the world are calling for international agreements to limit the spread of satellite constellations in space, with warnings that light pollution at night from the satellites damages ...