Árstraumur – Cygnus X-1

New track out from Árstraumur called Cygnus X-1 out now! It’s available as a free download (pay what you want) on Bandcamp and on all major streaming platforms!

Buy download: http://arstraumur.bandcamp.com/track/cygnus-x-1
Stream: song.link/cygnusx1

Cygnus X-1 is a galactic X-ray source in the constellation Cygnus and was the first such source widely accepted to be a black hole.

It was discovered in 1964 during a rocket flight and is one of the strongest X-ray sources detectable from Earth, producing a peak X-ray flux density of 2.3×10−23 W/(m2⋅Hz) (2.3×103 jansky).