X Particles in Ash Echoes are among the most used and crucial in-game items. These help obtain Echomancers and Memory Traces from the banners if you lack in-game gacha currencies. You can exchange 300 ...

Physicists at the world's largest atom smasher have detected a mysterious, primordial particle from the dawn of time. About 100 of the short-lived "X" particles — so named because of their unknown ...

During the last several weeks, this column has discussed the impacts of wildfire smoke over Missouri, as well as how air pollution, both natural and manmade, can impact human health. While these ...