In today's energy-hungry world, scientists are constantly revisiting every renewable resource looking for ways to increase efficiency. One researcher in the Netherlands believes even gravity can be harnessed to produce free electricity on a scale sufficient to power small appliances. VOA's George Putic has more.
Space X recently launched another rocket from California carrying satellites into space - accelerating interest by more businesses and research facilities that now view space as an opportunity. At this year's Milken Institute Global Conference, those in the space business describe why orbiting the Earth is so exciting. VOA's Elizabeth Lee has details from Los Angeles.