Ai Weiwei recreates Monet's water lilies using 650,000 Lego pieces

The monumental recreation is made from the studs of Lego bricks — a whopping 650,000 of them in 22 different colours. (CNN--Ela Bialkowska/OKNO studio) The monumental recreation is made from the studs of Lego bricks — a whopping 650,000 of them in 22 different colours. (CNN--Ela Bialkowska/OKNO studio)

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How the lack of gravity in space impacts astronauts’ brain

What happens to the brain when you take gravity away? According to a new study looking at astronauts both before and after space travel, that experience causes physical changes that researchers believe requires at least three years between longer missions to recover from.

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