The co-founder of Microsoft and his wife donated $2.65 billion last year in an effort to combat deadly diseases around the world.
The couple donates $1 million to support a Washington state initiative that would require criminal background checks on firearm sales at gun shows and online.
Microsoft's co-founder and former CEO is the latest luminary from the world of technology and science to warn against the threat of smart machines.
Technically Incorrect: The Microsoft co-founder says research by his friend Nathan Myhrvold has shown that studying dinosaur bones gives insights into the fight against malnutrition.
Facebook CEO Mark Zuckerberg saw the biggest jump in wealth among all the people on the list, earning him the No. 11 spot.
Bill Gates has added $3 billion to his net worth, cementing his position as the world's richest tech billionaire -- and once again as the richest person in the world.
Technically Incorrect: The Microsoft co-founder admires Mark Zuckerberg's grasp of Chinese and laments his own linguistic inabilities.
Technically Incorrect: As part of publicizing his support for the Omniprocessor, which takes sewer sludge and turns it into clean water and energy, Gates offers the comedian the ultimate "taste test."
Genetically modified bananas loaded with vitamin A are scheduled to go into human trials in the US with the aim of improving nutrition in Africa.
Bill Gate reemerges on Reddit to share an unusual image that ties into his work through the Bill & Melinda Gates Foundation.