Even though Raynor’s Raiders and prince Valerian’s forces were able to neutralize the Queen of Blades and cripple the Swarm, a vast number of zerg hives still remain on Char. Without the Queen of Blades' unifying presence, some zerg queens have begun to take control of individual zerg broods.
Kerrigan returns to Char determined to reunite the Swarm under her control. Before her defeat, the Queen of Blades hid caches of eggs on the planet; gathering these eggs and returning them to the spawning pools to hatch will allow Kerrigan to quickly grow her numbers. There is, of course, a catch: one of the rogue queens is collecting Kerrigan’s unhatched eggs as well and spawning them as her own. The only way to ensure Kerrigan’s victory is to hatch as many eggs as possible and to use superior numbers to subdue the rogue queen.
The zerg are able to infest almost any world they encounter, a testament to their amazing ability to adapt to the universe's most extreme environments. The planet Kaldir is one such environment. Its extreme cold and frequent flash freezes make this one of the most inhospitable worlds in the Koprulu sector... which is exactly what sparked the Queen of Blades’ interest in Kaldir. Hoping to make the Swarm stronger by evolving a way to deal with extreme cold, she sent a brood to infest Kaldir. However, the brood never reunited with the Swarm.
On Kaldir, Kerrigan’s objective is twofold: learn to adapt to the withering cold, and discover what happened to the lost brood. Before long, you will learn the brood's fate... and when you do, the cold of Kaldir will be the least of your worries.

I was wondering too why wouldnt space be the final harshest fronteer. Well even though space is like near absolute 0. The zerg can develop a simple carapace that shields them from space, think bugs and exoskeletons. it separates the warm gooy innards from the external environment. The same way an astronaught suites up. The other factor is that some fish here on earth actually develop an internal "anti freeze" so since the zerg are suppose to be capable evolvers, its should come as to no surprise that they could find a way to stay above an environment that can reach absolute 0. which can be possible if say a storm flash froze the place, wind chill factors that could rapidly cool something to the point of full molecular immobilization. Besides in space, it depends upon the factor of how fast it can naturally cool off, and even then it would still be several degrees above absolute 0 because of naturally occurring background or microwave radiation.
Nerd moment officially over. So yes it is a game, but games that force you to think logically, and seem plausible, are a bit more real and cool in the creativity department. At least in this nerds opinion.
Now, let us suppose that we put a thermometer in the very deepest, very darkest part of space. First, it would have to cool off, which would take a very, very long time, because in order to cool something off, energy has to taken away from it. In our atmosphere, things cool off by transfering energy to other particles, which remove it. The easiest example to relate to is sweating. When we sweat, as you know, your body produces a liquid that collects on your skin. As the liquid evaporates, the water molecules carry the heat away from your body into the surrounding air, cooling you off and preventing you from overheating. To get a better "feel" for it, spray youself down with water, and then stand in front of a fan. As the air blowing past evaporates the water, it removes heat energy from your skin - you'll get very cold pretty quickly.
This was also the principle behind the thermos - it was a double-layered container with a vacuum in the space between the inner container wall and the exterior shell. Because there was a vacuum between the container of liquid and the exterior shell of the thermos, there would be minimal energy transference - which means little heat lost. However, a perfect vacuum is very hard to generate, and nowadays thermos containers are full of insulation, not an evacuated chamber, so thermos containers aren't as good as they used to be.
This is why it takes so long for stuff to cool down in space. Since, as we discussed before, there aren't many particles *at all* in the vacuum of space, it takes a very, very long time for something to cool down. When it does, however, it won't register absolute zero.
If you had an exceptionally accurate thermometer, it would read 2.728 Kelvin (remember, you always say the numerical value and then "Kelvin" - it's NEVER "degrees Kelvin" - just some science etiquette :-) ). Anyways, it's going to register 2.728 because of the cosmic background radiation. This stuff is microwave radiation left over from the Big Bang, and if you goggle image search "WMAP" (which stands for Wilkinson Microwave Anisotropy Probe), you'll see the map of microwave radiation in the cosmos. If you read about it, it's even cooler. But, long story short - it's the radiation left over from the Big Bang.
Now, over time, as the universe expands, this value will decrease. But, that'll take billions of years, so for now, it's safe to say that it'll be 2.728 Kelvin. Now, this numerical value might vary from source to source, but if you read anything by Michio Kaku or Stephen Hawking, they both identify it as 2,728. So, trust who you like, but I'll stick with my two world-class astrophysicists.
Now, if you hold it in space by a star, the temperature will rise, because the solar radiation will impart energy upon the object, causing the particles in the object to bump, jostle, and move more - raising the temperature. (After all, temperature is only a measure of the energy, or amount of movement, of particles).
Zerg can already traverse space, right? And I was under the assumption that space is practically freezing...and if so, then they've already endured the harshest environment possible (minus maybe swimming through molten lava), in theory.
Any ideas?
The requirements to go in space are different than in, say, Antarctica. Space is kinda its own thing.
Also Zerg are like wierd unreal alien insectitiod thingys, so we have no clue what's with them in a science like nature. lol
and I agree with TriGGaHappy, it's a game so BLizzard can say whatever. lol
as for the going to the planet bc its cold.... space is much colder. the story might need a switch up (some kind of chemical keeps the planet just a few kelvins above absolute zero or something) but for all we know they could have already made an explanation and its just not public.
looking forward to the expansions. wish they would make a Worlds of Starcraft. WoW has run its course IMO
plz hurry OK?
-Terran Raiders: bring back Vultures and Goliaths, make reapers affordable for Multi-player and emphazise them, bring in specters.
-Terran Confederacy: switch medivacs back to evac and bring back medic(re-balanced obviously), bring back firebats, bring in DiamondBacks, emphazise siege tanks(?).
and well I don't really have a clear idea for the rest because their main expansions aren't out yet but I think it is a feasible and awesome idea if introduced (and balanced) correctly into the game.
this is pure torture.
Any news on a realese date yet?