To create a wormhole that doesn't collapse, you need exotic matter
10 May 2023
Making a wormhole that a human could theoretically travel through would require an upside-down universe and negative energy
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Premium
How we could discover quantum gravity without rebuilding space-time
10 May 2023
In the search for a theory that unites general relativity and quantum physics, many have tried to rethink space-time. But what if space-time emerges naturally, like a hologram?
The quantum world: A concise guide to the particles that make reality
5 April 2023
Get to grips with the deepest layer of reality we know of with our inventory of the subatomic realm, from known particles like quarks and the Higgs boson to hypotheticals including the fifth force and strings in 11 dimensions
We’ve built a fourth dimension of space and we’re about to look inside
14 October 2020
We only ever experience three spatial dimensions, but quantum lab experiments suggest a whole new side to reality – weird particle apparitions included
