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

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

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

The particle in question, known as a sterile neutrino, was supposed to only interact with gravity and have zero interactions ...

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the ...

New research puts forward compelling new evidence that dark matter interacts with cosmic "ghost particles" called neutrinos.

Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

Physicists have spent decades treating mass as something the universe simply hands to particles, a property encoded in ...

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

Physicists are exploring whether hidden dimensions and the shape of space could help explain why fundamental particles have ...

Every time two beams of particles collide inside an accelerator, the universe lets us in on a little secret. Sometimes it's a particle no one has ever seen. Other times, it's a fleeting glimpse of ...

Birds, the warm-blooded and feathered vertebrates, are being used to put romantic partners to the test. A relationship experiment dubbed the "bird theory" is making the rounds on social media. It ...