A network of satellites that can take high-resolution photos and colored videos of earth is planned. The images could be used in many ways. Videos could track moving vehicles and observe mining sites, while photos would make it possible for the construction of 3D models of the ground. The idea is to provide businesses and other groups with data to help them monitor certain activities or predict future events. VOA's Deborah Block reports.
In some parts of the world, the race is on to find the next generation of clean fuel. In the Netherlands, a group of students called Team Fast has developed a unique secret catalyst that can produce hydrogen fuel that is cheaper and cleaner than gasoline. VOA's Kevin Enochs.
Robots from around the world clashed in Washington, DC (this week, July 17-18). It's part of a global competition bringing high school students together to learn tech, but also to learn to cooperate to solve important problems. VOA's Steve Baragona reports.