How many colors can one see in this photograph of the aurora borealis in Alaska? Green, pink, yellow, orange, and purple colors dance across the horizon in a swirling display of beauty. The lights provide an astronomer's delight in the inky sky.
On Jan. 4, 2019, at 4:37 a.m. EST the CAPER-2 mission launched from Norway. The rocket flew through active aurora borealis, or northern lights, to study the waves that accelerate electrons into our atmosphere.
Science Daily. Mon, 28 Jan 2019 14:25:20 EST.