short story about object hitting earth

[metamike]

I remember I read a story a while ago that was in a composition of other SciFi short stories, but I forgot what the actual story was called, or who it was by.

Basically, it's a short story in which there's a group of unbelievably intelligent gentlemen who get together every now and then, and tell stories. After someone tells a story, the rest of the guys bet on whether it was true or a lie. A stranger joins their group one day, and the SciFi Short Story itself is about how this stranger is telling the group of intelligent men a completely realistic discovery he had made that the earth would be destroyed by an invisible object hitting the earth. The story ends a bit after when the comet was supposed to actually hit, and you're left without knowing whether the story the stranger told was true or false.

Anyone know what this was?

[uncwilult02]

This sounds like it if definitely one of the "Tales from the White Hart" by Arthur C Clarke. A bunch of regulars meet at a secret bar and swap such stories, usually with questions about the reality of them being poised. Strangers coming in with questionable stories probably happened in quite a few of them, and they were always treated harshly.

[B5B7]

Or it could be one of Spider Robinson's 'Callahan's Saloon' stories.

[Jim diGriz]

This is "Super-Neutron" by Asimov, it can be found in the "Early Asimov" collection. It had been his intention at the time to write a series of stories revolving around 'The Honorable Society of Ananias' but in the end this was the only one.