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
3 March 2021
Previous ideas for warp drives have required types of matter that do not seem to exist, but a new concept could allow them to be made without any imaginary substances
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
2 December 2019
Dark matter makes up most of the stuff in the universe, but we still don’t know what it is. Chamkaur Ghag is on the case
6 August 2019
Supergravity is an idea that could unite general relativity with quantum mechanics, and the three physicists who formulated it have now won a $3 million prize for their work
18 June 2019
Albert Einstein is arguably the most influential scientist of the 20th century. His general theory of relativity changed our understanding of space and time, becoming one of the two pillars of modern physics – the other being quantum mechanics.
14 June 2019
General relativity is one of two pillars of modern physics – our working theory of gravity and of the very large, of planets, galaxies and the universe as a whole
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...
20 June 2018
The discovery of gravitational waves was the crowning glory of Einstein's relativity. They might now have provided the first hint of something to scupper it
18 December 2017
To reconcile quantum mechanics and gravity, a new theory flips the usual script. Space-time and gravity may emerge from quantum effects, not the other way round
