Physicists are increasingly entertaining a radical possibility: our familiar universe of three dimensions of space and one of ...

Some scientists think quantum mechanics may be working in a lower-dimensional setting, giving us the illusion of our 3-dimensional universe. This idea changes the nature of our perceived reality, ...

The book Flatland: A Romance of Many Dimensions by Edwin A. Abbott explores the concept of physical dimensions through characters who encounter higher-dimensional beings. The protagonist, “A. Square,” ...

Could the vast universe in which we live actually be the interior of a black hole within a larger universe? The idea, which ...

A photon starting in a single time bin can be probabilistically transformed to a time-bin qudit state. Credit: American Physical Society A team of researchers has developed a technique that makes high ...

Around 2,500 years ago humankind began to recognize that our planet is round—although a few “flat Earth” supporters still deny this today. The shape of our universe is not clear, however. Previous ...