World’s First Antimatter Delivery System Successfully Tested

Scientists at CERN have successfully transported antimatter by road for the first time, marking a breakthrough that could allow research laboratories across Europe to study the rare particles.

Researchers moved a container holding antiprotons on a truck for a 10-kilometre journey around the laboratory’s campus, completing the world’s first test of an antimatter delivery system.

“The particles returned, so this was a success,” said Stefan Ulmer, a physicist involved in the experiment.

Ulmer said the test marks the “starting point to a new era” for antimatter research.

Antimatter is considered the mirror counterpart of ordinary matter. While both share many properties, antimatter particles carry opposite electric charges and magnetic characteristics.

Scientists believe the Big Bang should have produced equal amounts of matter and antimatter. However, the observable universe contains far more matter, a mystery that researchers are still trying to explain.

When antimatter comes into contact with normal matter, both annihilate instantly in a burst of energy, making the particles extremely difficult to store and transport.

The antiprotons used in the test were produced at CERN’s antimatter factory, the only facility in the world capable of generating and storing these particles.

“This opens up so many possibilities,” said Francois Butin, the technical coordinator of the facility.

Scientists captured 92 antiprotons and stored them inside a portable cryogenic device known as a Penning trap. The particles were cooled to 8.2 Kelvin (−268°C) to slow them down and prevent collisions with other particles.

The trap, weighing about 850 kilograms, was carefully lifted by crane and placed onto a flatbed truck before the journey began.

Transporting antimatter is extremely complex because even minor vibrations or contact with matter can destroy the particles.

“The most critical part is on the road, because there you have additional vibrations,” said Marcus Jankowski from CERN’s experimental physics department.

During the test, the truck carrying the antimatter trap, labelled “Antimatter in Motion”, slowly travelled across the campus while escorted by support vehicles.

Researchers say the ability to transport antimatter could transform physics experiments by allowing scientists to move antiprotons to quieter laboratories outside accelerator facilities.

Such environments would allow measurements 100 to 1,000 times more precise, helping scientists study fundamental symmetries of nature and better understand the imbalance between matter and antimatter in the universe.