An international group of astronomers found that a dim star known as a red dwarf skimmed through the outskirts of our solar system, coming within 8 trillion kilometers of Earth some 70,000 years ago. A member of this group is Dr. Eric Mamajek, from the University of Rochester. He talks about this amazing discovery on today's One on One segment. And… NASA's Dawn spacecraft was captured by the gravitational pull of the dwarf planet Ceres at 1239 UTC Friday, March 6th. George Putic tells us about what NASA is expecting from the mission. Forecasting the weather, it's said, is more an art than a science. Reporting from Colorado Shelly Schelender will tell us about an observation system that is working to improve weather science, through volunteers who share their data through the Internet. Reporting from Manila, Simone Orendain reports that scientists in the Philippines are at work on a strain of rice that could solve one of the world's major health challenges: vitamin A deficiency. Bill Ide, reporting from Beijing tells us that China has pledged to get tough on polluters and tighten enforcement in a bid to clean up its environment, an issue that is one of the Chinese public's biggest concerns. We'll have these stories and more on today's edition of VOA's Science, Health and Technology magazine... Science World.