aeronomie.be

6907Z TIL The earth will complete 367 complete rotations this year; it takes 23 h 56 m for one rotation (a sidereal day).
8ePaK TIL the 1991 eruption of Mt.Pinatubo in the Philippines triggered a "volcanic winter" that lowered the earth's temperature, causing unusually cold weather in the northern hemisphere for a few years afterwards.