NPR's Steve Inskeep speaks with journalist and novelist David Ignatius, whose latest novel is a thriller about an invisible enemy that could disrupt the satellite signals central to our daily lives.
Some doctors are promoting propellant-free inhalers over puff inhalers that emit greenhouse gases. Climate change can exacerbate respiratory ills because of more fires, air pollution and allergens.
Boeing is set to launch humans to space for the first time Monday night aboard its Starliner capsule. This mission is years behind schedule and over budget.