In what could be the first step in revolutionizing how we generate solar power, researchers have cracked the code on cheaply printing solar cells onto paper. Scientists at MIT developed a process similar to laser printing which sprays a layer of solar cells onto plastic, cloth, or paper — without the need for high temperatures or potentially damaging liquids.
The solar cells produced are durable, too; they can function even when repeatedly folded.

























Investor Warren Buffett gave a gift of Berkshire Hathaway stock to the Bill & Melinda Gates Foundation worth about $1.5 billion (19.34 million shares), boosting their efforts around the world to fight disease.