Bruce Baber (20 Oct 2013)
"Reply to Joe M regarding passing through a comets tail"

 

In 1910 the earth passed through the tail of Halleys Comet.  Here's a brief excerpt from an article I found at http://www.moonphases.info/the-1910-return-of-halleys-comet.html
 
What's more, this particular pass of the comet was an especially close one. The comet came within 14 million miles (21 million km) of Earth at one point during its May approach, and Earth briefly passed through the tail of the comet. This, of course, was amazing for scientists, allowing them to study many details of the comet ‘up close' as it were. The close pass was reportedly spectacular in the sky, the comet easily visible.

The downside of this close pass and the new observations made was that a panic briefly overtook much of the world's population. Scientists had noticed a poisonous gas known as cyanogen that was present in the composition of the tail, and while they assured the public that the gas would be much too diffuse to have any effect during Earth's pass through the tail, many people still panicked and assumed the worst. In addition, the comet was connected to several events that it could not possibly have caused, such as the death of King Edward VII in England and the death of Mark Twain. This brief hysteria faded when the Earth passed through the comet's tail without problems, but many people were coerced into buying expensive comet protections or otherwise suffered from the panic.
 
I think ISON is significant and a strong sign as it appears brightest on Hanukkah, but I am more reserved about forecasting any kind of destruction associated with it.
 
YBIC
Bruce Baber