ATLAS is a particle physics detector at the LHC, near Geneva. It is designed to help us find the answers to the most fundamental questions about what the universe is made of and how it works.

• What is ATLAS?
• What is the LHC?
• What is particle physics?
• Why are Canadian physicists working on ATLAS?
• What has Canada contributed to ATLAS and to the LHC?
• How does our participation in ATLAS and the LHC benefit Canada?
• ATLAS-Canada in the press
• Is this kind of research safe?
• Whom can I contact if I want to find out more?
• ATLAS-Canada related documents
• Subatomic Physics in Canada