iknow that to be bullshit. heard this 'tale' so many times in the last 15 years..
if there was a second sun or a brown dwarf anywhere near our solar system, the planets orbits would be totally off, everything would be getting fucked up.. but... we keep floating through space..
i do not doubt we haz a binary... something like sirius...
(watched some great stuff by santos bonacci who showed when sirius and helios are closer to one another.. we have golden ages )