2013-06-18 Citizen Scientists to Help Map CO2 Gas
Welcome to As It Is, the daily magazine show from VOA Learning English. I’m Mario Ritter. A music video shot in space? That is now a reality. Today, we hear…
2013-05-28 A Call for Citizen Scientists to Help Map CO2 Gas
Welcome to As It Is, the daily magazine show from VOA Learning English. I’m Mario Ritter. A music video shot in space? That is now a reality. Today, we hear…