Though the COVID-19 pandemic isn't over, it is heading into a new phase, particularly in Western countries such as the United States and throughout Europe. Increasingly, citizens want a return to normal, with fewer restrictions, and are showing willingness to find ways to live with and manage the virus. As ...
 Between 1967 and 1976, experiments at the Stanford Linear Accelerator Center (and elsewhere) demonstrated the existence of fundamental particles known as quarks inside protons, neutrons, and other hadrons. I describe the key SLAC experiments and the related theoretical advances that led to the quark-parton model becoming the accepted picture of ...
Decarbonization is one of the biggest challenges faced by aviation, and the pathway to net-zero emissions will take innovation, collaboration, and legislation. Sustainable aviation fuel (SAF) has a key role to play but requires bold action from airlines, fuel providers, and policymakers in order to reach the necessary scale. One ...