Understanding how the immune system ages is hugely important. Over the years, the composition of immune cells shifts and their protective functions weaken. That reduces resistance to disease. Until recently,…

A new model of Earth’s climate system suggests that if global temperatures pass the Paris Agreement’s 1.5 °C limit, it could set off a chain of irreversible tipping points. German…

Astronomers have announced the discovery of a new dwarf planet in the Solar System, named 2017 OF201. Researchers tracked its movement for seven years using powerful ground-based telescopes located in…

Doctors often start the examination with a so-called “visual test”: using a first impression, they judge whether a patient looks older or younger than their actual age. This observation can…

Astronauts on long missions could make spacewalks easier thanks to a new device. The Stillsuit system, inspired by the device from the sci‑fi film Dune (2000), collects urine, purifies it,…

Japanese police hope new AI tools will help prevent serious crimes. Officials say the technology will initially be used to protect high-ranking VIPs. The idea emerged a year after the…