Aliens could say hello by arranging planets in prime number pattern
A sufficiently advanced alien civilisation would be able to arrange the orbits of the planets in its star system in a pattern that could never...
Bats buzz like bees and hornets to scare off hungry owls
For the first time, researchers have recorded mammals mimicking the sounds of stinging insects as a survival mechanism: mouse-eared bats buzzing to keep barn and...
How quickly can you catch covid-19 again if you have already had it?
Since omicron became the dominant coronavirus variant, reinfections are on the rise – but it is unclear how long people can expect to be protected...
Will bitcoin succeed in the Central African Republic? Probably not
The Central African Republic has become the second country to adopt the cryptocurrency as legal tender, but experiences in El Salvador, the first nation to...