
Welcome to the 5th dimension: Our universe's radical new fate
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

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

11 April 2018
Physicists from Einstein to Hawking tried and failed to unite gravity and quantum theory. Now we have hints of a better – but not so beautiful – answer

4 April 2018
Just after the big bang, waves of neutrinos and other matter raced across the cosmos. Those neutrinos reached forward in time to dictate where galaxies form now

20 March 2018
We have two ways to measure the accelerating expansion of the universe, but they don’t line up. If dark matter gives off radiation, it could make them agree

9 February 2018
If gravitational waves – ripples in space time – have a handedness, primordial particles could interact with them to form a dark matter superfluid that spreads through the cosmos

20 December 2017
The black hole firewall paradox has been vexing physicists for years. But if quantum laws lead to the creation of other universes, the headache disappears

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

21 September 2017
The highest energy particles in the universe hit Earth very rarely, so it took 10 years of data to pinpoint their origin. They’re coming from galaxies far, far away