Astronomers found the two galaxies in new radio maps that were created using the MeerKAT radio telescope in South Africa.

Centaurus A features a supermassive black hole at its center, which releases powerful jets that flow perpendicularly to the galaxy's disk -- a common structure for radio galaxies.

Giant radio galaxies, however, are more rare and have jets that exceed 22 times the size of our Milky Way galaxy.

The MeerKAT telescope, located in the Karoo region of South Africa, includes an array of 64 radio dishes and has been operational since July 2018.

The powerful telescope is sensitive to faint radio light, which allowed researchers to find the giant radio galaxies.

The Square Kilometer Array may discover more radio galaxies and shed light on how galaxies evolve.

"In the past, this population of galaxies has been hidden from our 'sight' by the technical limitations of radio telescopes," Delhaize said.