There is an interesting article in todays newspaper about random fluctuations in the light coming from star KIC 8462852 which does not have an explanation.
http://www.news.com.au/technology/sc...710da6cc4a9d4a
This was discovered by the amateur Planet Hunters project and has been followed up SETI.
One explanation that was initially proposed was that the fluctuations were caused by a swarm of comets heading towards the star, however this now seems to have been discounted by a professor at Louisiana State University.
It has also been proposed that these fluctuations could be caused by a speculative idea called a Dyson Sphere - a structure built around a star by an advanced civilisation to harness the power from the star.
It would interesting to hear if anyone on the forum has idea's about what might be causing this.
Cheers,
Mark