How the XB-1 aircraft went supersonic without a sonic boom
The experimental supersonic aircraft XB-1 Boom Supersonic When the experimental XB-1 aircraft broke the sound barrier three times during its first supersonic flight on 28
Astronomers have spotted the largest known object in the universe
Artist’s illustration of the large-scale structure of the universe Science Photo Library/Alamy Astronomers have found the largest known structure in the universe. It is 1.4
Is cleaner air accelerating global warming more than we expected?
Air pollution can have a cooling effect on the climate Cheunghyo/Getty Images James Hansen, the climate scientist best known for alerting the US Congress to
Salamanders fill their toes with blood to release sticky grip
The translucent toes of a wandering salamander William P. Goldenberg How salamanders manage to move around on uneven, vertical tree surfaces with such dexterity has
Why it’s a terrible time for RFK Jr to lead US health policy
Robert F Kennedy Jr testifying during his confirmation hearing on 29 January Win McNamee/Getty Images Robert F Kennedy Jr has been a controversial figure in
Setting fire to a million acres of California could cut smoke by half
Firefighters in California during a prescribed burn San Francisco Chronicle via Getty You can fight fire with fire, even in the flammable forests of the
Trump-backed Stargate Project could strain the US energy grid
OpenAI CEO Sam Altman speaks at the White House in Washington DC on 21 January 2025 AARON SCHWARTZ/POOL/EPA-EFE/Shutterstock This week, OpenAI and other tech companies
The surprising relationship between your gut microbiome and sleeping well
Foxys_forest_manufacture/Getty Images There are many things we can blame for a bad night’s sleep – screen time, stress, too much booze. Now there is another
Fire at world’s largest battery facility is a clean energy setback
Smoke rises during a fire at Vistra Energy’s Moss Landing battery storage facility in California on 17 January Bloomberg / Getty Images A fire at
A new definition of obesity could help treat millions of people
Measuring body fat more carefully could help treat obesity Halfpoint/Getty Images Rethinking the way we define obesity could help millions of people worldwide, argue a