Many theories are rock-solid: Scientists have just as much confidence in the theories of relativity, quantum mechanics, ...

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But despite its extraordinary popularity among some of the smartest people on the planet, string theory hasn’t been embraced by everyone–and now, nearly 30 years after it made its initial splash, some ...

The accelerating expansion of the Universe might not be just an unexplained phenomenon — according to a new proposal by theoretical physicists, it could be a fundamental feature woven into the very ...

Are black holes tunnels to other locations in spacetime? Are they wormholes connecting different regions of the universe? A study has provided a clear answer to this question. The remainder of this ...

Theoretical physicist Lennaert Huiszoon has described a new family of strings in research conducted at the National Institute for Nuclear Physics and High Energy Physics. He investigated so-called ...

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A team of astrophysicists says they may have found evidence for "cosmic strings", long-hypothesized defects in the universe left over from its early in its expansion. The rest of this article is ...

When molecular biologist Francis Crick tripped on the psychedelic drug LSD in 1953, his mind famously pulled together all of his previous research on human DNA to conceive of the image of a double ...