Deep in outer space, astronomers have discovered another "odd radio circle" — the latest in a short list of mysterious rings ...

With help from citizen scientists, astronomers have found the most powerful and distant "odd radio circle" ever detected.

The largest of three newly found ring shaped structures in the cosmos are almost a million light-years across.

A newly discovered odd radio circle in space could serve as a time capsule for the violent events that shape galaxies.

Most distant and powerful odd radio circle ever found - a massive double ring that could reveal how black holes and galaxies ...