Are multiverses real? An astrophysicist explains why it depends on how you define ‘real’

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...
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What Does the Edge of the Universe Look Like?

Our journey to comprehend the Universe’s edge begins with the concept of the observable Universe. This term refers to the portion of the cosmos that we can theoretically detect from Earth. The ...