The "treble clef" galaxy cluster is an unusual source of radio waves, the Chandra X-ray observatory has found. (Image credit: X-ray: NASA/CXC/INAF-IRA/A. Botteon et al.; Infrared: UKIDSS-GPS ; Radio: ASTRON/LOFAR; Image processing: NASA/CXC/SAO/N. Wolk)

What looks like a neon pink treble clef floating out in space is actually a bizarre source of radio waves spotted deep in the cosmos.

What is it?

Scientists using NASA's Chandra X-ray Observatory have peered far out into space to look at strange radio waves coming from what they have nicknamed the "treble clef" because of its distinct shape, which looks a lot like the musical notation.

Using Chandra, as well as the German Extended RÖntgen Survey with an Imaging Telescope Array ( eROSITA ) X-ray telescope, researchers looking at this strange sight spotted a big cloud of blue gas, which we can see in this image, along with radio signals (seen here in bright pink).…