- July 27, 2025
Solar drone with wingspan wider than jumbo jet could fly for months
The Skydweller drone Skydweller A solar-powered surveillance drone with a wingspan larger than a Boeing 747 jumbo jet could fly
Our brain’s mitochondria may play a crucial role in the onset of sleep
Mitochondria may have a function beyond providing energy CNRI/SCIENCE PHOTO LIBRARY The components of cells that provide them with energy
Should we preserve the pre-AI internet before it is contaminated?
Wikipedia already shows signs of huge AI input Serene Lee/SOPA Images/LightRocket via Getty Images The arrival of AI chatbots marks
Is it time to aim for 1.7°C as the new limit for global warming?
Wildfires are expected to become more frequent and severe as global temperatures rise COSTAS METAXAKIS/AFP via Getty Images If you
Complex knots can actually be easier to untie than simple ones
A knotty problem for mathematicians finally has a solution Pinkybird/Getty Images Why is untangling two small knots more difficult than
How government use of AI could hurt democracy
AI could automate some government paperwork, but it comes with serious risks Brett Hondow / Alamy Many countries are exploring
Colossal’s plans to “de-extinct” the giant moa are still impossible
An artist’s impression of the moa, one of the largest extinct birds Christopher Klee/Colossal Biosciences Colossal Biosciences has announced plans
Fig trees may benefit climate by turning carbon dioxide into stone
Fig trees may be especially good at removing carbon dioxide from the atmosphere Raimund Linke/mauritius images GmbH/Alamy Some fig trees
Prehistoric Spanish people transported 2-tonne stone by boat
The Matarrubilla stone at Valencina in Spain was transported more than 5300 years ago L. García Sanjuán A 2-tonne megalith
Altered gut microbiome linked to fertility issues in people with PCOS
Restoring levels of specific gut microbes might help treat fertility issues in people with PCOS Science Photo Library / Alamy