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Researchers at M.I.T. have taken a step toward replicating organs by discovering a way to make “building blocks” containing different kinds of tissue that can be put together.
Humans could be walking on Mars within the next couple decades, for only a fraction of the cost if explorers are given one-way tickets. It’s not a suicide mission, say cosmologists.
Legendary physicist Sir Roger Penrose says he has found the first evidence of an eternal, cyclic cosmos that is refreshed by Big Bangs, of which there have been many.