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Cosmic microwave background

Definition

Cosmic microwave background

Cosmic microwave background is a sea of radiation that provides us with evidence for the big bang. The big bang is now orthodoxy, although without a theory than unifies general relativity with quantum theory, we’re stuck in explaining exactly what it was or why it happened.

A crepe being made

Physics

How to make the perfect crêpe according to fluid dynamics

News

General_relativity

Definition

General relativity

Star Trek

Physics

How Star Trek’s warp drives touch on one of physics' biggest mysteries

Comment

What is quantum field theory?

Question

What is quantum field theory?

Black holes

Definition

Black holes

The multiverse - are there multiple universes?

Question

Are there multiple universes?

Dark matter

Definition

Dark matter

Pentaquark

Physics

Bizarre pentaquark turns out to be a new kind of subatomic 'molecule'

News

We've seen signs of a mirror-image universe that is touching our own

Space

We've seen signs of a mirror-image universe that is touching our own

New experiments are revealing hints of a world and a reality that are complete reflections of ours. This mirrorverse may be able to solve the mystery of the universe's missing dark matter

Features

People in Science

Chien-Shiung Wu

Definition

Causality

Physics

The secret of dark matter could be a particle the size of a planet

Features

Physics

The kilogram has been transformed as new definition takes hold

Regulars