Radio star

They also emit radio frequencies, but from the effects of supermassive black holes at the centre of galaxies.

Some late-type stars can produce astrophysical masers from their atmospheres and beam out coherent bursts of microwaves.

[2] Some studies have found that main-sequence stars may extremely rarely emit radio waves.

An alternative scenario is that FRBs are emitted as the result of flare activity on nearby stars within a kiloparsec of the Sun.

They state that it constitutes the "most compelling detection of a solar-like radio burst from another star to date" and strongly indicates a causal relationship between these emissions.

Despite this, their finding has not been put in direct relation to the BLC1 signal by scientists or media outlets as of January 2021 but implies that planets around Proxima Centauri and other red dwarfs are likely to be rather uninhabitable for humans and other currently known organisms.