It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, ...

For more than a century, physicists have suspected that the familiar three dimensions of space and one of time might be only ...

In 1919, physicist Theodor Kaluza hypothesized that extra dimensions might solve some outstanding problems in physics. And while we haven't found any evidence yet for anything outside our normal ...

For more than a century, physicists have suspected that the familiar three dimensions of space might be only a small slice of ...

The geometry of space, the setting in which physical laws operate, may hold clues to some of the biggest unanswered questions in fundamental physics. The underlying structure of spacetime itself could ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

The filament of matter stretches 50 million light-years, and contains a row of galaxies 5.5 million light-years long that are ...

Researchers have found a razor-thin, rotating string of galaxies inside a massive cosmic filament, revealing unexpected ...

The idea that we might be living in a simulated reality has worried us for centuries. Now physicists have found some ...

Scientists working with the James Webb Space Telescope discovered three unusual astronomical objects in early 2025, which may ...