Ward Cunningham created the wiki to help a group document what it knew and what it didn't know. The technology that now powers massive websites, perhaps the best known of which is Wikipedia, could have netted Cunningham millions of dollars most likely, but he released it for free.
The World's Clark Boyd reports that Japan's troubles with its quake-damaged nuclear reactors are prompting European leaders to reassess the safety of their own reactors, and Europe's reliance on nuclear energy in the future.
Danish and Czech scientists are working to solve a centuries-old mystery involving 16th century astronomer Tycho Brahe. The mystery is about his death. Scientists dug up Brahe's bones this week to search for clues. But where?
For today's Geo Quiz, we wanted you to name two countries looking to erase an old debt. The answer is North Korea and the Czech Republic. Anchor Katy Clark speaks to the BBC's Rob Cameron who is in Prague.
Czech musician Marketa Irglova is just 21 years old, but as one-half of the indie folk duo, The Swell Season, she already lists three albums, an Oscar, and two Grammy nominations among her many accomplishments.
Security at a Slovakian airport planted explosives in a passenger's luggage without his knowledge as part of an exercise. They didn't expect that the passenger would get through security and make it to his destination. The World's Carol Zall has more.