Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem ...

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

The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

The theorized unseen structure of spacetime could also explain of the outstanding questions about the accelerating expansion ...

Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly ...

By combining different kinds of observations, cosmologists have shown that what we see is more easily explained if neutrinos, ...

Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that has long posed a problem: According to physicists’ best current ...

According to the Big Bang theory, normal matter composed of protons, neutrons, and electrons should account for roughly 5% of ...

Using the Super Proton Synchrotron, the team created beams of electron-positron pairs and passed them through a meter-long region of plasma. This setup served as a scaled laboratory version of a ...

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 ...

The universe's matter-antimatter asymmetry, where matter significantly outweighs antimatter despite their theoretically equal creation at the Big Bang, remains a major unsolved problem in physics.