17 November 2021
The idea that the universe started in the big bang revolutionised 20th-century cosmology. But it seems increasingly unlikely it was a case of something from nothing
29 September 2021
Black holes born in the big bang could be the dark matter physicists have sought for decades – if they exist. Now there's an audacious plan to find the scars they would have left as they punched through the moon
22 September 2021
Black holes devour stuff and then shrivel away over billions of years. Explaining what happens to anything that falls in explodes our current theories of physics, says cosmologist Paul Davies
25 November 2020
Different measurements of the Hubble constant, the rate of space-time expansion, refuse to agree – meaning we may have to look beyond Einstein’s theories to explain the universe
29 July 2020
A faint fuzzy glow around the first black hole image last year baffled astronomers. Now we know what it contains – and it’s more bizarre than we ever imagined
22 July 2020
A century ago, we missed the loose threads that told us our picture of the universe would unravel. Let’s not be so complacent now, says cosmologist Dan Hooper
8 July 2020
We long assumed particles carrying the force of gravity couldn't have mass. That's wrong – and it may mean gravity travels at different speeds across the cosmos.
28 May 2020
Black holes exert a powerful pull on our imagination, but their weirdness starts way before you cross the event horizon, says astrophysicist Chris Impey
20 May 2020
Cosmologist Katie Mack spends her days pondering the end of everything. Whether the cosmos dies a slow heat death or winks out of existence tomorrow, she finds it helps put everyday troubles in perspective
11 December 2019
It certainly wasn’t big, and probably didn’t bang – and the surprises in the conventional story of the universe's origins don’t end there
