Cygnus X-1 was the first X-ray source widely accepted to be a black hole candidate and it remains among the most studied astronomical objects in its class. I'm sure you see the cygnificants.
Nathan's Home page
I am a modern day Renaissance man with interests ranging from mathematics, through computer science and the physical sciences through to music and art, how we live in cities, and teaching problem solving.
I'm currently living in Sydney, Australia.
Things people email me about regularly. Water level sensor Cross stitch pattern generator Fungi