ET might use gravitational waves to communicate
A minor change to interferometer parameters might reveal the Earth is not alone
Earth magma ocean ended up on the moon
New modelling resolves contradictions in Earth-moon hypothesis. Lauren Fuge reports.
Researchers see the rarest event in the universe, beneath an Italian mountain
A dark-matter detector picks up radioactive decay that takes place over trillions of years.
Anthropogenic global warming kicked off in 1865
New modelling and old records combine to show greenhouse gases and aerosols started to warm things up in the late nineteenth century.
Don’t repeat experiments, just flip coins
The ‘replication crisis’ in science is no more than a heads-or-tails dilemma.
DNA remnants of three separate Denisovan populations found in human genomes
The archaic hominins weren’t homogenous, and archaic humans weren’t shy, research suggests.
Flocking behaviour seen among visually equipped particles
Physicists see complex behaviour emerge from simple capacities.
The mathematics of hill walking
Big data and geographers combine to better calculate how to climb up slopes.
Microbots swarm and shape-shift
Chinese research shows tiny mass-produced bots can organise collectively depending on the environment.
Race against time: ethnicity of many crucial medical cell lines misclassified
For some diseases, ethnicity counts. But researchers have found some cell lines classified as African American are in fact European.