A backward, mirror universe could explain the existence of dark matter. If an anti-universe exists, it would run backward in ...

A recent resurgence of interest in a bold cosmological theory has reignited debate about the nature of dark matter, the Big ...

In one new theory, it is possible that dark matter exists in a mirror universe where there are only dark versions of forces ...

When we experience the world, we believe it’s an accurate reflection of reality. But what if it’s all an illusion? From the ...

The new measurement from LHCb has found differences between baryons and antibaryons, which are made of three quarks and three ...

Matter-antimatter asymmetry puzzles physicists. Learn how the Deep Underground Neutrino Experiment (DUNE) may find answers.

The universe is a very intriguing and still mysterious thing. And pinning down exactly what dark energy is, and how it behaves, is going to be paramount to understanding how the universe might end.

For decades, astronomers have wondered what the very first stars in the universe were like. These stars formed new chemical ...

Fast radio bursts (FRBs) last around a millisecond and in doing so encode otherwise unattainable information on the plasma ...

The first chemical reactions in the wake of the Big Bang have been recreated for the first time in conditions similar to ...

Science is a field where something new is discovered every day. No matter how small, every day is different and experts work ...