A magnetic field is invisible, but it can be detected using a magnetic compass. A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction ...

"This is the first solid evidence that helical magnetic fields can explain astrophysical jets at different scales, supporting the universality of the collimation mechanism," Adriana Rodríguez ...

"This is the first solid evidence that helical magnetic fields can explain astrophysical jets at different scales, supporting the universality of the collimation mechanism," said Adriana ...