We'll learn more about how important getting a good night's sleep is to our health and well-being from Mark Underwood, a neuroscience researcher.  He'll also share some tips on ways we can improve our own sleep quality. And... A team of scientists announced this past week that they discovered two new planets orbiting a star that is nearly as old as the universe. Farmers are relying on a lot more on technology and various agri-business services to reduce costs and improve yields and profits. We look at one of those services. We have a report about how the human/robot connection was apparent at this year's International Conference of Robotics and Automation in Hong Kong. Mt. Vesuvius blew its top back in 79 AD and totally destroyed the ancient Roman city of Pompeii. Now the California Science Center, in Los Angeles, is presenting the history, and the science, behind the tragedy. A new study shows the microbes that help us digest our food can be damaged by malnutrition and that the damage can continue long after being treated. The Obama administration recently prposed stronger regulations to limit climate-changing emissions from U.S. power plants.   These stories and more are coming up for you VOA's science, health and technology magazine, "Science World."