RT @waitbutwhy: A mesmerizing HD timelapse of the sun compiled from 17,000 images. Largest sunspot since 1990. waitbutwhy.com/2014/12/amazin… http://t.co/ZczdkI27CO
RT @waitbutwhy: A mesmerizing HD timelapse of the sun compiled from 17,000 images. Largest sunspot since 1990. waitbutwhy.com/2014/12/amazin… http://t.co/ZczdkI27CO