For more than a century, Einstein’s relativity has set a hard speed limit for the universe, with light as the ultimate ...
Time feels like the most basic feature of reality. Seconds tick, days pass and everything from planetary motion to human memory seems to unfold along a single, irreversible direction. We are born and ...
In the strange corner of modern physics where spacetime itself becomes the engine, the old rule that nothing can outrun light ...
Spacetime itself would also need to be “quantized,” or broken down into constituent parts. This is what the notorious string theory attempts to do, as does loop quantum gravity, currently considered a ...
Physicists at the University of Warwick have developed a method to detect minute spacetime fluctuations, also known as quantum foam.
Imagine if we could use strong electromagnetic fields to manipulate the local properties of spacetime—this could have important ramifications in terms of science and engineering. Electromagnetism has ...