The audacious quest to light up the sky with artificial auroras 09. December 2025 (14:00) How a Finnish physicist named Karl Lemström once became obsessed with recreating the aurora borealis from scratch – and may have ended up creating something even more intriguing(New Scientist)
We’ve finally cracked how to make truly random numbers 09. December 2025 (11:00) From machine learning to voting, the workings of the world demand randomisation, but true sources of randomness are surprisingly hard to find. Now quantum mechanics has supplied the answer(New Scientist)
2025 is the second hottest year since records began 09. December 2025 (04:00) Mean temperatures this year approached 1.5°C above the preindustrial average, making it the second hottest year after 2024(New Scientist)
Odd elements in supernova blast might have implications for alien life 08. December 2025 (20:00) Some of the elements used by living systems are far more abundant in Cassiopeia A than we thought, hinting that some parts of our galaxy might be more suitable for life than others(New Scientist)
How worried should you be about spending too much time on your phone? 08. December 2025 (18:00) Screen time has been linked to all sorts of problems, from depression and obesity to poor sleep. But how worried should you really be? Jacob Aron sifts through the evidence(New Scientist)
Extreme heat hampers children’s early learning 08. December 2025 (16:00) Children regularly exposed to temperatures over 30°C (86°F) have lower scores on literacy and numeracy tests at age 3 to 4, according to UNICEF data from six countries(New Scientist)
Are we living in a simulation? This experiment could tell us 08. December 2025 (11:00) The idea that we might be living in a simulated reality has worried us for centuries. Now physicists have found some tantalising clues – and devised an experiment that might reveal the truth(New Scientist)
