mar inkta davidson is a biologist specializing in ecologist and evolution. and i'm phil torrez. i'm an entomologist. but i'm over america for a very bad ride. how bad is our air? that's our team.

mar inkta davidson is a biologist specializing in ecologist and evolution. and i'm phil torrez. i'm an entomologist. but i'm over america for a very bad ride. how bad is our air? that's our team. now let's do some science. >> hi guys welcome back to another week of techknow where we're going to show you some pretty fun innovations in science. i'm here with marita and rachelle. hi, nasa seekers mission, this is a gc-8, loaded with millions of dollars of equipment measuring the air as we're flying through the gulf. it was a pretty incredible experience. let's take a look. ists 7:30 in the morning and -- it's 7:30 in the morning. and hangar 9 is buzzing with excitement. >> any last questions about what we're going to be doing today? save jet. >> from a distance our plane looks like any other. but close up you can see it's anything but. i'm minutes away from boarding this plain with nasa experimentalists. it is a nasa gc-8, trying to measure the pollution and the atmosphere. it's a three pronged attack. the signs of the tc 8, after the u 2 spy plane. the er 2 application is a sight