If there really are aliens out there, they probably have working compasses.
That’s because scientists have picked up ‘coherent’ radio signals from a planet 12 light years away from Earth, which suggest it has a magnetic field.
Magnetic fields are essential for a habitable planet, as they protect any life it harbours from bombardment by cosmic radiation and charged particles.
Researchers from the US National Science Foundation (NSF) say the radio signal came from a rocky planet called YZ Ceti b, which orbits the small red dwarf star YZ Ceti.
It likely originated from an interaction between the planet’s magnetic field and the star it orbits, similar to the aurora borealis – or Northern Lights – here on Earth.
Read more: ‘Coherent’ radio signal is detected from an alien planet 12 light-years away – raising hopes that it could be HABITABLE