[ WP ] You return from a space mission to find that human life on Earth is non-existent . What has happened ?

This is wrong. 
 
 I glanced towards my surrounding. My severely outdated GPS maps, now powered only by the Erebos space station, obviously stated that this place was in the middle of Pacific, in accordance to continental position in 2188. 
 
 But all I could see was green, lush and thick forest. 
 
 I turned on my communicator. `` Jack, can you see this? could you turn on the atmospheric, gravitational, electromagnetic and infrared scanners? I had a very bad feeling the instant Pacific turned into tropical forest.'' 
 
 `` Got it, Frank, relaying the data now, though I doubt there are anything noticeable.'' 
 
 `` Jack, how long have we left Earth?'' 
 
 `` Counting the hyperspace dillation? Twenty four years, three months, two days and seven hours. The only thing that could made this drastic change in environment is all out nuclear war, or....'' 
 
 `` No, do n't, do n't even think about it. It was too frightening that nuclear all-out war pales in comparison.'' 
 
 `` But what else could caused this? Even the GOVSAT, UNSAT, and DRAGON satellite information network is down, you know, along with orbital surveilance bunker NucleoNet. Not even nuclear EMPs could took down those.'' 
 
 `` Pick me up, and let's grab one of those NucleoNet bunkers. They may or may not confirm our suspicion.'' 
 
 `` Roger that.'' 
 
 The drone descended slowly, and as I stepped inside, my peripheral vision caught a huge shadow in the horizon. `` Did you see that?'' 
 
 `` Not better than you. Hurry up, I've sent another drone to tow the NucleoNet bunker. If that's really *that*, I do n't want to be anywhere near it.'' 
 
 The drone ascended with acceleration that would make your average Fighter pilot to pass out. Well, we the Daemons were enhanced on genetic level, and the suits provide additional resistance to innertial Gs. 
 
 `` Did you get the bunker?'' I asked Jack the first thing after getting out the airlock. 
 
 `` It's the worst. The magnetic and solid-state storage modules are burned, but the optical drive are surpirsingly in good condition. *They* had activated the Towers, deploying the bioweapons and automated terraforming mechanism, along with anti-orbital weapons. The Daemons, for better or worse, are the last of humanity.'' 
 
 `` We need to go back to the Tartarus station and have them accelerate Nidavelir's terraforming efforts. If it's really the Jotuns' Towers, then we have no time to spare if we wanted to defend Nidavelir against them.'' 
 
 `` You bet we are. Initiate the hyperspace engine sequence, and announce that we're entering hyperspace in 1 hours. Set course to Spica.''
