RileySoto wrote:Spinning the rock could let you get gravity and mixing left over ejecta from digging out the inside of the asteroid with edible aerogels and 'home-made' soil could encourage bacteria to grow. And since it is the future, you could print the genomes of most any species from a lab, you could easily populate your new biosphere. Obviously this technology is still hundereds of years off, but with tech from 2200, could this be possible with out the need for massive funds from massive world powers?
Most asteroids are carbonaceous or silicate, not viable bacteria nutrients. Any growth mediums would need to be brought along for the ride. The dirt on Earth took hundreds of millions of years to accumulate from early chemophiles.
One often overlooked aspect of asteroid behavior is how incredibly dry they are. Larger bodies like planets and moons had water on their surfaces at some point, even unlikely bodies like Mercury and Venus had water vapor for at least a short period during their initial formation and cooling.
Asteroids didn't. That means that the chemistry of an asteroid is typically completely anhydrous and oxygen free, and the introduction of water during any large scale efforts will start generating new hydrated minerals and oxides. This can cause structural weakness and will leach water out of your supplies. This effect has been observed on Earth, meteor fragments degrade rapidly upon contact with free water and oxygen in Earths atmosphere, and samples must be taken and analyzed rapidly before their composition is altered.
It's also important to note that not all asteroids are solid bodies. Most have had their surfaces pulverized into a fine dust over the years (sometimes over a meter deep), and the body itself may not be structurally sound. Some asteroids are little more than agglomerations of smaller fragments and dust compacted into a single object.
The asteroid would have to be extensively surveyed and analyzed before any attempt is made to land on it or bore into it. You don't want to lose 5 billion dollars in mining equipment when your asteroid of choice disintegrates into a fine powder