Overview

• The Future Circular Collider (FCC) is proposed to replace the Large Hadron Collider (LHC) as the world's most powerful particle accelerator.
• The FCC would include a 91-kilometer underground tunnel and aims to address fundamental questions about the universe's origins, such as dark matter and energy.
• A feasibility study completed by hundreds of scientists outlines the project's technical and financial scope, estimating an initial cost of 16 billion euros.
• Independent panels are currently reviewing the study, with CERN's council set to deliberate on the proposal in November 2025.
• A final decision on whether to proceed with the FCC is expected by 2028, with potential construction starting in 2033 and operations in the 2040s.