Official SpaceX Photos:
Arabsat-6A Mission
Lawrence Livermore National Laboratory (LLNL):
Chart of Electromagnetic Radiations
Thomas Shahan:
Adult Female Phidippus mystaceus Jumping Spider
9brandon:
Snow / Queen Anne's Lace
daynoir:
bar magnet on a compass array
Happy Body Slow Brain:
IMG_8543b
PhilipStobbart:
Sun through top of tree