
10 mysteries of the universe: What came before the big bang?
19 September 2018
Searing bursts of radio waves first spotted a decade ago could come from bouncing black holes – and that suggests a universe might have existed before ours

19 September 2018
Searing bursts of radio waves first spotted a decade ago could come from bouncing black holes – and that suggests a universe might have existed before ours

27 June 2018
Physics says that our perception of smoothly flowing time is a cosmic accident. So why do we think the future always comes after the past?

25 April 2018
Awarded every four years, the Fields medals honour the brightest young mathematical talent. We look back at some of the most intriguing past winners

18 April 2018
Why we perceive the passage of time is one of the biggest mysteries of physics. Now we could have found its source – in our most potent theory of reality

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 Â

8 March 2017
Could two rival theories of the make-up of the cosmos really be the same thing? Pulling at the threads could reveal a deeper reality

16 November 2016
An inspirational leap could unify quantum gravity and general relativity – but with physicists still struggling, baby steps forward might be more likely

13 July 2016
Quantum physicists just can't agree on how to handle the fundamental uncertainty that apparently underpins reality. We round up their best attempts so far

22 June 2016
Carlo Rovelli reflects on why time is fundamentally human, and how physics is like music – you don't have to be able to create it to appreciate it

24 February 2016
It’s now so hard to test our best theories of how the universe works that some physicists want to change the way we do science