It landed in fragments in the Sierra foothills of California.
The meteor probably weighed about 154,300 pounds, said Bill Cooke, a
specialist in meteors at NASA's Marshall Space Flight Center in
Huntsville, Ala. At the time of disintegration, he said, it probably
released energy equivalent to a 5-kiloton explosion. The Hiroshima bomb
was 15 kilotons.
"They" the scientists tasked to protect us from such things, knew nothing about this until it hit the atmosphere at 44,000 miles and hour, getting so hot that it didn't burn it vaporized.
These same think tank expert types are the ones telling that nuke can be made safe, that we can "soup up" the clunkers and get even more power out of them, that only a handful of people ever got hurt by radiation from nuke.
The draw of the science, the sexiness of it all on the surface belies the ugliness of the denial that blinds.