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3D Replicator, Organs from stem cells, Warmer & bluer oceans – This Week in Science

This week, we saw 3D sculptures printed by light, mouse kidneys grown inside a rat, and why our oceans are getting ever so slightly bluer and greener with each passing year. Here's our science junkie, Kavya Narayanan, with this week's wrap of science. Follow us on Twitter @tech2eets - https://twitter.com/tech2eets and on Facebook - http://www.facebook.com/tech2dotcom