Extremely low sea ice levels in the Arctic and Antarctica signal a "new normal" that may accelerate global warming and disrupt ocean currents, on top of the consequences for people and wildlife that rely on the ice
A device has enabled people to see a new a shade of blue-green, which they say is more intense than any experienced before
Whenever there’s even a slight chance that an exoplanet shows signs of biological activity, people understandably get excited – but it’s never been aliens, and we shouldn’t jump to conclusions, not this time or the next, says Chris Lintott
A quantum sensor using Earth's magnetic fields outperformed standard GPS backups in test flights. This technology could help commercial aircraft stay on course amid a rise in GPS jamming and spoofing attacks
The "skyglow" produced when light from cities bounces off clouds can help cyanobacteria and other aquatic microbes grow at night
Microbial communities feeding on geothermal methane seeps beneath the Antarctic ice sheet could resemble life-supporting environments on frozen worlds in our solar system and beyond
A network of Earth's best clocks will be synchronised with the most accurate one ever sent into space. But the device has a short shelf life: it will burn up in the atmosphere at the end of the decade as the ISS deorbits
Water filters made from untreated wood can remove more than 99 per cent of particles, taking out many harmful bacteria and microplastics
The report of possible biosignatures on the exoplanet K2-18b is exciting, but we are a long way from establishing beyond doubt that there is life on such a distant world
When Roman Egypt came under attack from the Kushites in what is now Sudan, the Roman forces responded by destroying a Kushite city – or so we thought
