The biggest questions about life, the Universe and everything – and how to answer them.
Physicist Katie Mack explains five ways the world could end.
How physics informs our perception of reality.
Our intuition tells us that the future can be changed, but Einstein's theory of relativity suggests otherwise.
Einstein’s theory of general relativity is famously weird and complicated, so we’ve explained it.
Scientists say they have found "strong evidence" for the existence of a new force of nature.
Why physics suggests there are hidden dimensions besides the ones we know.
Why there could be many identical copies of you.
What is the smallest particle of matter?
You might think you would get crushed, but in fact something much more peculiar happens.
We have found plenty of apparently "Earth-like" worlds beyond our solar system.
How gravity may unlock the door through the Big Bang.
The Universe has been expanding ever since the Big Bang, but what is it expanding into?
The laws of physics and our own experience of time do not always see eye to eye.
Did you know your toaster can shed light on some of the most fundamental characteristics of the Universe?
The startling and apocalyptic consequences if all the world's oceans were to simply vanish in an instant.
How analysis of texts from the early medieval period can help us understand comets - and our universe.
The Universe has a speed limit and it seems there is no way around it
Can spilling our tea teach us why earthquakes can be so destructive?
Many theories for what could be beyond the Universe are truly mind-bending.
It may seem obvious, but the dark sky tells us a lot about the Universe.
About 95% of the cosmos cannot be seen by any telescopes.
This one cataclysmic event gave rise to our entire Universe.
Everything around us is made of atoms, but the building blocks of the Universe are far stranger.
Scientists often change their minds or make mistakes, so why is it a good idea to believe what they say?