
Black hole that 'rings' like a bell shows Einstein was right
16 September 2019
Astronomers have looked at the way a black hole 'rings' like a bell to test a prediction of Einstein’s general relativity. Turns out Einstein is still right

16 September 2019
Astronomers have looked at the way a black hole 'rings' like a bell to test a prediction of Einstein’s general relativity. Turns out Einstein is still right

29 August 2019
LIGO detected two gravitational waves coming from the same area on the same day. This unusual event may have been caused by the same wave splitting in two

17 July 2019
Our best models of cosmology suggest the universe will either go on forever, implode or rip itself apart. A new proposal suggests an even weirder destiny

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 November 2018
General relativity has survived its latest test after observations of a violent collision between neutron stars tallied perfectly with Einstein’s theory

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

20 October 2017
We saw gravitational waves and light at the same moment from a neutron star merger, which means Einstein was right and some alternative theories are dead

5 October 2017
The best atomic clock will only be out of sync 3.5 times in every 10 quintillion ticks. It could help test general relativity and hunt for gravitational waves