Humanity is growing and wildlife is shrinking. The U.N. estimates that by 2050 the global population will increase by 38 percent to 9.6 billion. VOA Khmer's Seourn Vathana narrates.
In the shaw of New York City, a group of farmers is tending their crop and prepping it for shipment into the Big Apple on the same day basis. VOA Khmer's Seourn Vathana narrates.
The world's most advanced space telescope, which NASA plans to launch in 2018, is to undergo another important test in a chamber capable of creating deep-space temperatures. VOA Khmer's Hong Chenda narrates.
In many parts of the world invasive species contribute to destruction of local ecosystems, already threatened by climate change. VOA Khmer's Hong Chenda narrates.
Modern agriculture is feeding more people more cheaply than ever, with large-scale farms that grow just one or a few crops. VOA Khmer's Seoung Sophat narrates.
It is hard to know when to stop when listing the threats to the world's coral reef systems. There is overfishing, tourism, and the aquarium trade. VOA Khmer's Seourn Vathana narrates.
Virgin Galactic's Beth Moses, who received the Adler Planetarium's "Women in Space Science Award" last year, views the opportunity for widely available space flight as a unifying endeavor for humanity. VOA Khmer's Hong Chenda narrates.
Exploration of Mars has not proceeded without setbacks, but that did not discourage scientists trying to find the answer to one of the crucial questions -- has the red planet ever sustained life? VOA Khmer's Hong Chenda narrates.
An unusual machine working in Baltimore, with more than 20,000 followers on Facebook and Twitter, has just celebrated its third birthday. VOA Khmer's Hong Chenda narrates.
Securing petrochemical plants and keeping chemicals out of the hands of terrorists are the topics of discussion at the Chemical Sector Security Summit in Houston, Texas. VOA Khmer's Seoung Sophat narrates.
There's a cafe in the heart of Silicon Valley where the biggest names in tech are known to take their latte, attracting startup founders. VOA Khmer's Seoung Sophat narrates.
We are now producing nearly 300 million tons of plastic every year, half of which is used just once, then thrown away. VOA Khmer's Seourn Vathana narrates.