polarvortez2imageHey East Coasters — remember last month when your nose hairs transformed into ultrasharp needles and your skin turned a Smurflike blue? So many memories… NASA has rendered the much-hyped polar vortex, source of havoc and those nose-freezing temperatures on the U.S. East Coast, in incredible visual terms. Scientist Eric Fetzer explains the visuals using data from NASA’s Atmospheric Infrared Sounder (AIRS) instrument in an accompanying video. AIRS, Fetzer explains, is an “instrument that flies on a NASA satellite in Earth’s orbit and collects data about Earth’s atmosphere.” More