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How to wrap your head around the most mind-bending theories of reality

ARE there vastly many near-duplicates of you reading vastly many near-duplicates of this article in vastly many parallel universes? Is consciousness a fundamental property of all matter? Could reality be a computer simulation? Reader, I can hear your groans from here in California. We are inclined to reject ideas like …

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Operations begin to de-ice Euclid’s vision

Euclid is designed to look far and wide to answer some of the most fundamental questions about our universe: What are dark matter and dark energy? What role did they play in formation of the cosmic web? The mission will catalogue billions of distant galaxies by scanning across the sky …

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