looking at its light spectrum. if you have a science question you can submit it on our website. if we answer it on the show you get out d.v.d. featuring a lighthearted look at albert einstein's most famous theories. the most important thing is to never stop asking questions. moving from the depths of space to the depths of the sea. and a growing global problem. plastic one study has shown that three out of four fish course at a depth of five hundred mi says in the atlantic have plastic in their digestive tracts of large scale production of polymers began back in the one nine hundred fifty s. so some of the trash still polluting our lakes privates and oceans is up to seventy years. old. this bush is setting off on