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reply to post by rickymouse
Thanks for pointing this out.
All of this tells me that scientists know a whole lot less than a lot of people believe.
When first spotted, it seems ISON's size was widely estimated.
Then as it passed Earths orbit, ISON was supposed to be 3 miles in diameter, but on its final approach to the sun, it was only 1/3 of a mile. It sure lost a lot of mass during the time it traveled from Earth's orbit to the approach to the sun.
Then it didn't survive the star graze, then it did survive the star graze.
Real scientists speak in terms of uncertainty. People who want to present probability as fact just don't get it.
I Cant say anything