Some of the hardest questions in cosmology begin where the usual math gives up. Push Einstein’s theory far enough back toward the Big Bang, and the equations run into a singularity, a point where ...

Physics is still full of big questions that scientists have not completely answered. From the mysteries of dark matter and ...

For those who watch gravitational waves roll in from the universe, GW250114 is a big one. It's the clearest gravitational wave signal from a binary black hole merger to date, and it gives researchers ...

In Newtonian physics, space and time had their independent identities, and nobody ever got them mixed up. It was with the theory of relativity, put together in the early 20th century, that talking ...

Could the route to the stars be paved not by impossible physics, but by spacetime itself? A new warp drive model has been ...

The question of how gravity interacts with the quantum world has long perplexed physicists, but a non-quantum theory of space ...