'Failed star' with radiation belt could be a big deal for astronomy. Here's why

A brown dwarf just 18.5 light-years from Earth has been found to host a radiation belt. But why are scientists are so excited about this?

'Failed star' with radiation belt could be a big deal for astronomy. Here's why
A brown dwarf just 18.5 light-years from Earth has been found to host a radiation belt. But why are scientists are so excited about this?