Date: Sun, 29 Jun 2008 23:34:01 -0400 (EDT)
From: "Keith F. Lynch" <kfl at KeithLynch.net>
To: WSFA members <WSFAlist at KeithLynch.net>
Subject: [WSFA] Tunguska event centennial today
Reply-To: WSFA members <WSFAlist at KeithLynch.net>

Today (June 30th in the relevant time zone) is the 100th anniversary
of the Tunguska event, in which nearly a thousand square miles of
Siberian forest were flattened by a tremendous explosion.  Asteroid?
Comet?  Starship?  Antimatter?  Time traveler with an H-bomb?  Nobody
knows.  Could it happen again today, perhaps over a major city?
Nobody knows.

Discuss among yourselves.