Is it really possible that our solar system has an additional star?

Question

Have you heard of "Nemesis," the star whose gravitationaly pull might be responsible for earth's periodic mass extinctions?

Answer 1

Nine Planets Become 12 with Controversial New Definition

http://www.space.com/scienceastronomy/060816_planet_definition.html

About Nemesis....
Nemesis: Does the Sun Have a 'Companion'?

http://www.space.com/scienceastronomy/solarsystem/nemesis_010320-1.html

Good luck and good reading:)

Answer 2

The theory that a passing star caused real disruptions in our solar system has been put forth by many theorists; most famous of these was a Russian named Velikovsky.

There's considerable evidence that something happened, maybe a couple big events... for one thing the moon and it's orbit are hard to place causally without an outside event. There is also the retrograde orbit of Triton, and the asteroid belt most distinctly seems like a relic of catastrophe.

Given the span of time that our solar system has been here, it's easy to imagine that there might have been passing visitors.

If 'Nemesis' is a second sun, however, I really believe we would know where it is right now. The nearest stars we candetect are the Centauri System. I think if we had a visitor star it has moved on into deep space...

Answer 3

Nemesis is a science FICTION theory. I supposes that a dark star's gravitational pull knocks comets/meteors out of the Oort cloud every so often and send them to the inner portion of the solar system.

So far, no there is evidence that it exists.

Answer 4

I've heard of the possibility of a brown dwarf star (which is why we wouldn't have seen it) as the companion to the Sun in a binary star combination.

It sounded interesting at first, but the more you looked at the details, the less intelligent it sounded. A link to a site talking about the theory: http://newfrontiersinscience.com/Papers/v02n01a/v02n01a.pdf#search='Sun%20binary%20system'

Answer 5

Why do people keep asking this question the past week? I've seen it SOOOOOOO many times. Go to http://www.space.com Were ya'll watching something on TV about this? I thought Nemesis was a place on star wars.

Answer 6

Its certainly possible. It would likely be a brown dwarf, and therefore we may not be aware of its binary nature because we would not have been able to detect its complete path yet. It could help explain some of the events that have happened in the history of earth and of our system.

Answer 7

I've heard of the discovery of another planet, I'm not sure about another star. There is so much out there that hasn't been discovered yet. So I am not surprised. God has a vast creation!

Answer 8

I've heard of this theory. Binary stars are pretty common, but I think if we had one, it would be pretty visible to us at some point.

Answer 9

No, because we would've been engulfed by it by now.