The Centers for Disease Control and Prevention’s (CDC) estimate of the risk of COVID-19 transmission outdoors is misleading, public health experts warn. When the federal health agency released new guidelines on masks for fully vaccinated people last month, director Dr Rochelle Walensky stated that ‘less than 10 percent’ of coronavirus spread was occurring outside. Epidemiologists … Read more
The universe will gradually become a dark and quiet place as stars slowly fizzle out, but in trillions of years a few will let off one last spark of energy, a new study found. Physicist Matt Caplan from Illinois State University calculated that the last ‘white dwarf’ stars will become black dwarfs and will explode … Read more
A massive 95 per cent of deaths caused by hot weather in London and the West Midlands occur before heatwave alerts have been triggered, a study has found. And many do not view high temperatures as a risk – with only two out of five over-75s saying they thought it posed a danger to their … Read more