A new physics paper proposes modifications to Einstein’s theory of relativity that could solve one of the biggest issues ...

The collective gravity of countless neutrinos gently irons out the wrinkles in the cosmic web, preventing matter from ...

How can a universe built from stars, black holes, and dead stellar cores turn out to be less durable than physicists once ...

A Gravity Theory That Could Rewrite the Universe’s First Moments The first fraction of a second after the Big Bang has always ...

A mind-bending theory called quantum immortality suggests that your consciousness shifts to parallel universes after you die.

The far future of the cosmos may be less endless than it once appeared. New calculations place the decay of the universe’s ...

The particles that are in an atom: protons, neutrons and electrons The particles that are in protons and neutrons: quarks The four fundamental forces: gravity, electromagnetism, the strong force and ...

Interest in the multiverse theory, suggesting that our universe is just one of many, spiked following the release of the movie "Everything Everywhere All At Once." The film follows Evelyn Wang on her ...

A new experiment with momentum-entangled helium atoms could help unite quantum mechanics and general relativity.

Astrophysicists have presumed for nearly a century that the universe will just keep expanding for all eternity, driven by an invisible force called dark energy. But new data suggest that this is ...

According to the team, the new approach can explain how the universe's initial inflation can naturally arise. But it comes ...

Astronomy is, in essence, an exercise in inference. We cannot touch the stars, nor scoop up galaxies in a lab. Instead, we decipher the universe through its light — its color, intensity, rhythm and ...