10 years ago, the first high-energy collisions at the LHC.

🍾 #OnThisDay, exactly 10 years ago, the Large Hadron Collider – CERN’s flagship accelerator – embarked on its high-energy voyage. 🖥 Relive the moments leading up to the first high-energy collisions at the LHC. And find out more in the first feature from our series celebrating #10yearsofLHCphysics: