How far off does the future seem when you watch a 3-d printer build a house? This could be the tech that secures our domestic future on the Red Planet - at least that's according to a team of MIT researchers.
By now, many moviegoers have enjoyed futuristic visions of a high-tech African culture in the blockbuster "Black Panther." But a Dortmund exhibit shows that innovation is an everyday reality on the African continent.
Berlin's latest attraction, "Little Big City," shows a tiny version of the capital. In real life, Berlin is a lot tougher than the model, says DW columnist Gero Schliess.
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