Astronomers have discovered a strange new object in our Milky Way galaxy. An international team reported Wednesday that this celestial object — perhaps a star, pair of stars or something else entirely — is emitting X-rays around the same time it’s shooting out radio waves.

The mystery object, located just a short 15,000 light-years from Earth in our Milky Way galaxy, was spotted emitting unusual pulses.

Located in the Central Molecular Zone (CMZ), these filaments could be a part of a cyclical process in one of the galaxy’s most mysterious regions.