while i agree that complex tissues and organs are within a deckade or two’s reach, i wouldent exspect bringing back the dead and unborn life forms, could be some moral issues that keep that from happening? just maybe? anyways thats a very rudimentry printer and its not even 3d, so they can make lines of yeast.. we could already dol that with a machine for over a deckade so nothing truely new here, unless \I missed something.

I am very glad that you came to visit us here, Beucphalos. I always like to meet somebody who takes their screen name from Greek Mythology.

Here’s a place for the people brought back from the dead: HD 108874b, in the constellation Coma Berenices. The star is spectral type G5, a little bit cooler than Sol, our own G2 class star. The planet HD 108874b has a semimajor axis of 1.051 AU, so it is so close to having an orbit like ours, that it makes no never-mind. Its orbital period is 395.4 days, so you will need to write up a calendar with a 13th month to shoehorn in between January and February. Maybe we can name that month after Ray Kurzweil, but only if his fans sponsor the starship that first gets there. It could happen. There will be a lot of robots and 3D printers turning asteroids into starships after the year 2046. You can count on that. That’s about the time we will be bringing back the dead (more or less). Some of those robots will belong to somebody reading this post today.

This world has a mass of 1.36 Jupiter masses, so it is big enough to have moons larger than Io, Ganymede, Europa or Callisto. This means that this planet will have a magnetosphere greater than Jupiter’s (which stretches out to cover the first three of those moons…this means that an even larger world could keep it’s moons from losing their atmospheres to the wind blasting off of the surface of that star). (But there is the added problem that Jupiter’s first three large moons are blasted by ionizing radiation from Jupiter…Callisto is out of range of the radiation, but being that far out gives it such a long day that I fear photosynthetic plants might not make it through the long night.)

Yet, “It is expected that any moons orbiting this planet are enriched in carbon” (from Wikipedia). But since moons end up locked in by gravitational tides so that one face is always facing the mother planet, I don’t have much hope for a moon having a day short enough for even cyanobacteria to evolve. But not to worry.

Planets have spots along their orbits where the gravity of the star evens out with the gravity of the planet so that things in these spots can just park there. These are Lagrangian Points. Our planet Jupiter has a large number of asteroids leading and following it along its orbit, these are called Trojan asteroids. The Greek camp leads Jupiter by 60 degrees along its orbit and the Trojan camp follows by the same distance. There are as many asteroids in these two camps as there are in the Main Asteroid Belt. No kiddin’.

This means that any gas giant orbiting a G-class star could have large worlds preceding it or following it in its own orbit. That would be far enough away for those worlds to keep their spin and have a molten core of spinning nickel-iron to give them a magnetic field that would keep their atmospheres from being blown away by the stellar wind of the host star.
Even if the star HD 108874 doesn’t have such a planet, the Kepler mission has seen a few other gas giants in the Goldilocks Zones of their stars. There is one such world that is over six times the mass of Jupiter, so it could easily hold an Earth-sized planet in one of its Trojan Points.

In time humanity will find such a world and populate it with Benjamin Franklin, Edgar Allen Poe, Einstein, Edison, and Anne Frank and her family. There is a lot of room out there in the stars.