Back
Showing 131-140 of 1732 results

How Natural World Heritage Sites Are Being Spoiled

August 5, 2017

Aerial view of the Great Barrier Reef. Michael Amendolia/Greenpeace   No Longer Wild  How Natural World Heritage Sites Are Being Spoiled When a place is designated a Natural World Heritage Site, …

The predecessor of Earth’s flowers

August 5, 2017

What Did the Ancestor of All Flowers Look Like? Tracing back the genetic tree of flowering plants millions of years, scientists recreate the predecessor of Earth’s flowers     By Ben …

Organic solar cells

August 5, 2017

Films capture energy from the sun Production of organic solar cells, flexible in comparison to traditional photovoltaic panels, is beginning on a small-scale in Brazil EVANILDO DA SILVEIRA | ED. …

Out of Darkness

August 1, 2017

Restoring eyesight with a simple, inexpensive surgery Two doctors embark on one of their most challenging missions: fighting blindness and partial blindness in the isolated country of Bu