How many of you believe our sun could be part of a binary star system?

I saw a show recently on this theory. It seems there are mass extinctions on Earth every 26 million years in a quite regular pattern. The theory behind this is there is another star "hidden" from our view....probably a brown dwarf which could be difficult to detect, and it's orbit around the sun knocks comets out of the ort cloud every 26 million years. Some of these comets may have a collision course with Earth.

Thoughts or comments?How many of you believe our sun could be part of a binary star system?it's a very interesting idea, but I don't think searching for patterns among what appear to be pretty random extinctions is sufficient evidence to support this claim. still, best to keep your eyes on the skies...How many of you believe our sun could be part of a binary star system?Yes, I do believe this is so. The first reason for why I believe this is because I saw this on the discovery channel, and of course, what are the chances of it being wrong, so what the heck!



For my real reason (not accepted blindly) is the fossil evidence. Scientists have found evidence of mass extinction that actually has a pattern, but I do not know the frequency. This somewhat corresponds to what you said about the number of comets colliding with Earth every 26 mil. years. I would think that this scenario is only possible in the presence of a huge gravitational field, which requires a huge body of mass. With this, I would just assume it is a star; I do not think finding a planet of that mass would be possible.How many of you believe our sun could be part of a binary star system?Fantasy. There is no credible evidence whatsoever.How many of you believe our sun could be part of a binary star system?
Are you talking about the theory of "nemesis". i heard red dwarf, but i still dont believe it. Isn't possible that some the comets in the ort cloud or kyber belt naturally could have a very elliptical orbit in which some would just cross our orbit every 26 million years or so. Reguardless of red or brown dwarf, it should still be big enough to so some sort of gravity signature.

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