Yes, she does have a weapon. It is called "Golden Apple".
She carries a golden apple to throw at others when she becomes upset or angry.
That myth story is most important part of the event in "Judgement of Paris". At the time in the wedding of Thetis and Peleus, she threw it into the banquet hall at the wedding because she was not invited to.
There haven't been any probes sent to Eris.
No, Eris is too cold to have any water. It does have ice though.
No. Eris is much to far away to send astronauts there. We have not even sent any probes there. The only object astronauts have visited is the moon, which is much closer to Earth than any other object in space.
Eris's moon Dysnomia, appears to be made of material similar to Eris and Eris appears almost grey.
Eris is solid.
Eris has one satellite
Eris doesn't have any rings.
Yes. Eris orbits the sun.
There haven't been any probes sent to Eris.
no but Eris isn't a planet it is a dwarf planet.
no man could not live on Eris is too cold for any form of life.
It is highly unlikely. Eris is too cold to support any conceivable form of life.
Probably. Eris is too far away for us to make out and of the features on its surface and we have not sent any probes there.
No, Eris is too cold to have any water. It does have ice though.
Nobody has been to Eris. The only place people have gone is to the moon, not to any of the other planets.
Yes. While the sun is much dimmer when view from Eris, it is still brighter than any other star.
No. No spacecraft has gone past Eris, nor are there currently plans to send anything there.