Just 50 years ago the Aral Sea, which straddles the nations of Kazakhstan and Uzbekistan, was the fourth largest lake in the world. But today it is mostly desert and environmental groups are trying to save what is left. VOA Khmer's Hong Chenda narrates.
Powerful magnets at a laboratory in Florida are allowing researchers to see the unseeable, understand the nature of things, and break the boundaries of scientific knowledge. Faith Lapidus has more on the National High Magnetic Field Laboratory. VOA Khmer's Leakhena Sreng narrates.