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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?


CNES Satellite Illustration

Einstein's gravity principle still correct, finds most precise test

14 September 2022

An experiment conducted on a satellite in orbit found that Albert Einstein's ideas about gravity are still correct, with measurements accurate to one part in a quadrillion


Quantum field theory

Quantum field theory

22 April 2021

Quantum field theory marries the ideas of other quantum theories to depict all particles as “excitations” that arise in underlying fields.


We have seen hints of a new fundamental force of nature

We have seen hints of a new fundamental force of nature

13 May 2020

Multiple indications seem to be showing that something is manipulating the universe beyond the four basic forces we know – and we are starting to work out what it is


String theory

String theory

3 July 2019

String theory is perhaps the most high-profile candidate for what physicists call a theory of everything


What is quantum field theory?

What is quantum field theory?

12 June 2019

Quantum field theory marries the ideas of other quantum theories to depict all particles as “excitations” that arise in underlying fields.


Black holes

Black holes

12 June 2019

Black holes are objects with an intense gravitational pull so strong that not even beams of light, the fastest things in the universe, can escape. This makes them impossible to see directly, and so astronomers have had to use a variety of clever techniques...


Causality

Causality

4 June 2019

Causality is the study of how things influence one other, how causes lead to effects.


Quantum physics

Quantum physics

15 May 2019

Quantum physics underlies how atoms work, and so why chemistry and biology work as they do. You, me and the gatepost – at some level at least, we’re all dancing to the quantum tune.


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