Planetary Spots News Today

This is Aspen Public Radio broadcasting on k a j x. Assman and k c j Axe Cop and air. From the brown theater in Lowville Kentucky and p.r.i. Public Radio International Im Ira Flatow and this Science Friday. Every night bats emerge from their caves thousands of them and somehow they avoid mid-air collisions How do they do it this hour well talk of the researcher who wants to save the world by eavesdropping on the echo location of bats and chooses hawks and drones and zip lines to do it bus will ...