Columnist Natalie Wolchover examines the latest developments in the “forever war” over whether string theory can describe the ...

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 CuriousKidsUS@theconversation.com. Are multiverses real? If so, what do they look ...

A series of viral social media posts drew attention to an old cosmological theory-that our universe began from a collision ...

What if our universe isn’t the only one? Modern physics suggests the Big Bang may not have been a unique event, and that new ...

Physicists have proposed a new model of space-time based on string theory to explain dark energy. Their hypothesis suggests that, at extremely small scales, space and time behave differently from how ...

Tue, April 8, 2025 at 6:00 PM UTC The centuries-long Copernican journey of slowly displacing humans from the center of everything has provided our species with an unprecedented understanding of our ...

In 1980, Stephen Hawking gave his first lecture as Lucasian Professor at the University of Cambridge. The lecture was called “Is the end in sight for theoretical physics?” Hawking, who later became my ...

Some celestial bodies are so cold that methane freezes; others are so hot that nuclear reactions occur. And then there’s Earth, with a benign temperature hovering in the narrow range between freezing ...

Should the universe “choose” braneworld, it could mean that your senses (which perceive fewer dimensions) are keeping you ...

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Philosopher Bertrand Russell believed that the way we understand our world fundamentally shapes the way that we live our lives. Thus, an anarchist lives a very different sort of life than, say, an ...