Is there a fifth force of nature? For almost 100 years scientists have suspected “ghost particles” are moving things in mysterious ways. Now we might be about to find them.
Elusive ‘ghost’ in particle machine captured!
Secrets of the universe: “Normal” matter makes up just 5% of all that exists. Glossary
Subatomic particles - The minuscule pieces of matter that make up atoms. Scientists have discovered 36 so far.
Atoms - The smallest unit of any chemical element.
CERN - The European Organisation for Nuclear Research is the scientific body in charge of the Large Hadron Collider.
Gravity - An invisible force that pulls objects towards each other. Earth's gravity keeps us on the ground and makes things fall. It is less strong on Mars.