Few ideas in modern science have reshaped our understanding of reality more profoundly than space-time—the interwoven fabric ...

Taken from the 25th anniversary issue of Physics World, this article examines one of the five biggest unanswered questions in physics as selected by the magazine’s editors Scientists and philosophers ...

Once quantum mechanics and thermodynamics have given time a direction, 'now' isn't physics, but a combination of time's arrow with psychology and physiology. The past is what is encoded in our ...

The concept of time feels so natural that we often forget just how peculiar it is.What actually is time? Figuring it out remains one of the trickiest problems in physics.Time governs our everyday ...

If we try to define time without its associated space, we see problems, like the breakdown of simultaneity outlined above. Each place has its own present, but we can’t separate time and space.

Read and watch more from Time: The Ultimate Guide. While time travel is fundamental to Doctor Who, the show never tries to ground the Tardis' abilities in anything resembling real-world physics.

Neils Bohr once said “Physics concerns what we can say about Nature." Neils Bohr said, “It is wrong to think that the task of physics is to find out how Nature is. Physics concerns what we can ...

Many of the tools in particle physics take a very long time to develop and are very expensive. These investments always pay off, often with big surprises that change the course of science.

I mean there's no reason why he should. Why should he spend a lot of time reading the philosophy of physics? I'm sure it's very difficult for him to do. But I think he's just . . . uninformed.