Newly made laser-cooled antimatter could test foundations of modern physics
Superchilled antiatoms offer a new way to test symmetry and Einstein's theory of gravity
![laser light cooling antimatter](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/04/040121_mt_antimatter_feat.jpg?fit=1030%2C580&ssl=1)
For the first time, physicists have used laser light (illustrated, purple) to cool antimatter. Gray lines show an antihydrogen atom’s movement before cooling; blue is after.
Chukman So/TRIUMF