Quantum common sense
Despite its confounding reputation, quantum mechanics both guides and helps explain human intuition
The closer you look, the more the materialist position in physics appears to rest on shaky metaphysical ground
Taming the quantum spooks
Reconciling Einstein with quantum mechanics may require abandoning the notion that cause always precedes effect
Must science be testable?
String wars among physicists have highlighted just how much science needs philosophy – and not just the amateur version
Might nature’s bottomless pits actually be ultra-efficient quantum computers? That could explain why data never dies
I feel therefore I am
How exactly did consciousness become a problem? And why, after years off the table, is it a hot research subject now?
Light travels at around 300,000 km per second. Why not faster? Why not slower? A new theory inches us closer to an answer
Life without design
Constructor theory is a new vision of physics, but it helps to answer a very old question: why is life possible at all?
Too many worlds
Nobody knows what happens inside quantum experiments. So why are some so keen to believe in parallel universes?
The most exciting discovery in physics could come about thanks to telecoms satellites. Is a single theory of reality in sight?
Life is quantum
Weird quantum effects are so delicate it seems they could only happen in a lab. How on Earth can life depend on them?
Our quantum problem
When the deepest theory we have seems to undermine science itself, some kind of collapse looks inevitable
Trying to resolve the stubborn paradoxes of their field, physicists craft ever more mind-boggling visions of reality
A binding light
Laser beams can tie themselves in knots, just like electrical cords. But what does this tendency to tangle illuminate?
What life wants
Dead matter has no goals of its own, yet life is constantly striving. That makes it a deep puzzle for physics
World next door
Nine theories of the multiverse promise everything and more. But if reality is so vast and varied, where do we fit in?