Weather.com - Laura Dattaro, 9/19/13
'A Quadruple Lunar Halo,' Earth and Space, Highly Commended. Tiny ice crystals high above the ground refract the moonlight, diverting it into a number of beautiful halos. (Dani Caxete, Spain)
As much as we love the moon, there’s a lot going on up in the sky besides our orbiting satellite. Entries to The Royal Observatory Greenwich’s fifth annual Astronomy Photographer of the Year competition are a poignant reminder of that, capturing the eerie green glow of the aurora borealis, the dusty clouds of distant galaxies and nebulae, the streaks of comets as they pass by overhead.