RT @coreyspowell: Light from 3 energy sources: fusion (stars), friction (meteor), reflection (Comet Catalina). Photo: Fritz Hemmerich https://t.co/pHYsV1oxSE
RT @coreyspowell: Light from 3 energy sources: fusion (stars), friction (meteor), reflection (Comet Catalina). Photo: Fritz Hemmerich https://t.co/pHYsV1oxSE