the other solar system

[NomadicSky]

In 1865 the asb's replicate the solar system in every way, however the events that play out on the "other" earth are from Turtledove's southern victory series. The other solar system is two light years from our own...

[The Mists Of Time]

If and when the two Earths made contact with each other, it would give the two Earth's the chance to see how things would have worked out had the American Civil War ended diffrently on their own Earth.

[Dynamitard]

There would probably be intergalactic war between the two. Maybe the Race would invade and both earths would team up to defeat them.

[stevep]

In 1865 the asb's replicate the solar system in every way, however the events that play out on the "other" earth are from Turtledove's southern victory series. The other solar system is two light years from our own...

Astronomers in both systems would wonder where the other came from in 1867, when the light reaches them. Before that, I think it was advanced enough that the parallel world people would wonder why the stars have suddenly shifted.

Might set up some interesting effects. Possibly some arch-conservatives would see it as an act of God and proof that science is not all-knowing and hence a more reactionary world in some ways.

Not sure when the radio signs from each other would have been powerful enough to have been picked up and understood. Then a slow exchange, 'You did WHAT!' and shock horror about having two earth’s and the differences between them. The existence of the two would shake up both scientific and religious communities.

Steve

[Thande]

I've thought of this before, but I decided to rip off Gerry Anderson's "Doppelganger" concept and put another Earth on the other side of the Sun, opposite to ours so that neither Earth is aware of the other until they develop space travel.

I think this might be more interesting than another solar system, because it means we might be able to send people there in the 1960s-90s era rather than having to wait for either an FTL drive or suspended animation, generational ships etc.

[Max Sinister]

@Thande: But we'd also need a way to protect astronauts against cosmic radiation. At the moment, how much is the longest time a human has spent in space? Some months?