When rubber-soled shoes skid on a hardwood floor, slip pulses travel between the two surfaces at high speeds to produce the familiar sound.
Nuclear winter, climate change, bioterrorism, AI. Those and other threats are growing in potential impact. What can we do?
The specialized devices are democratizing access to cosmic-ray experiments.
Europe’s particle physicists choose a 91 km electron–positron collider as the next global flagship project.
