The winter of 1912 was so cold that Niagara Falls froze over.
35
Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25
Rain contains vitamin B12.
188
Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
106
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96