Approximately 8,000 delegates including energy executives, government officials and Indigenous leaders from Canada and around the world attended the third annual Canadian Hydrogen Convention CHC which ran April 23 to 25 in Edmonton, Alberta. The CHC focused on how hydrogen will play a leading role and be a key enabler in Canada reaching its 2050 net-zero goals.
A man killed in a traffic stop last month when plainclothes Chicago police officers fired their guns at him nearly 100 times was shot 13 times, according to a recently
The open CMS detector during the second long shutdown of CERN’s accelerator complex. (Image: CERN) When we look at ourselves in a mirror, we see a virtual twin, identical in every detail except with left and right inverted. In particle physics, a transformation in which charge–parity (CP) symmetry is respected swaps a particle with the mirror image of its antimatter particle, which has opposite properties such as electric charge. The physical laws that govern nature don’t respect CP symmetry, however. If they did, the Universe would contain equal amounts of matter and antimatter, as it is believed to have done just after the Big Bang. To explain the large imbalance between matter and antimatter seen in the present-day Universe, CP symmetry has to be violated to a great extent. The Standard Model of particle physics can account for some CP violation, but it is not sufficient to explain the present-day matter–antimatter imbalance, prompting researchers to explore CP violation in