This day in history:

The American space shuttle, Challenger, exploded on this day killing all seven astronauts on board. The five men and two women - including the first teacher in space - were just over a minute into their flight from Cape Canaveral in Florida when the Challenger blew up. The astronauts` families, at the airbase, and millions of Americans witnessed the world`s worst space disaster live on TV.
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What is Encyclo?
Encyclo is a search engine for terms and definitions.
Hundreds of websites contain wordlists, each with their own speciality.
Encyclo brings those lists together and makes searching for definitions a lot easier.

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Encyclo has been online since october 15th 2007.
It currently contains
3,485,243 words
from
1122 sources.
The words are listed in
32 categories.