Will it lead to increase of weight of earth? At what point it would be substancial enough to affect the earth's rotation and orbit?
Every year a few thousand tons of meteorites etc. fall to earth. I think by the time we should worry about the earth's weight (instead of our own), most of humankind (other peoples descendants) will no longer live on this planet anymore.
Never? Earth's mantle extends to a depth of 2,890 km We have excavated 12km and built at the max altitude of about 1km over the surface. You would need to basically do exponents to make a dent on the velocity of the Earth's rotation and orbit.
I don't know. Typically speaking earth molten core both isolated from it's crust surface and are rotating much faster than their surface in which our living space weren't really anchored to it so it might slow earth crust rotational speed but i doubt the core can be affected.
Its near impossible because of the momentum of the earth. You would need something as heavy as the moon to even affect the earth's rotation. Only a significant impact can affect the orbit of a planet assuming that the planet is not destroyed from that.
Diamonds are not scarce on earth though. It is artificial scarcity as the monopoly control the supply.
Yes but imagine that amount on earth, diamond will loose its value and lots countries debts will disappear, etc..., that much diamond will change the life (and technology and researches) on earth as we know it even if there is a monopoly controlling the supply
The only reason to be concerned about space mining, is the fact several companies intend to ‘grab’ an asteroid and bring it back to Earth orbit for easier mining. This in and of itself is not an issue. It will not cause gravitational issues or even effect the Moon. My problem with this idea is that I do not have faith in all space mining companies having perfect orbital mechanics understanding. Ergo, chance of them messing this up is HIGH. Nearly all potential mess ups have no issue for Earth, but a very small subset of them includes crashing said asteroid into our planet. However, as the asteroids being discussed are only about a kilometer in size it should be fine, right? Well, the asteroid believed to have killed the dinosaurs was about 10 kilometers in size. Size of an asteroid impact crater directly depends on the momentum of the asteroid (mass times velocity). So just hope they slow it down enough not to be an issue. ;-) Also, even at high speeds this level of impact would not slow down/speed up the rotation of the Earth by a noticeable amount. Instead the Moon is doing that for us. Right now the Moon is moving away from the Earth by 2cm a year, stealing the Earth’s angular momentum to do so.
Not really, at the time that space mining is common, refining and space drydock would be also common and very few materials would be worthy of the reentry cost. Besides the fact that earth would lose mass both in lauches and reentries and any exchanges would be pretty small compared with earth dimension (unless you strip mine Mars or something of that size)
Well there is a number but im not going to break my head calculating. Basically if it unevenly spread in a large enough quantity it can effect the tilt of our axis. but I'm sure bringing even a few metric tons or even giga tons of minerals won't change much, but there surely would be a minute change but that's it. And assuming it is amassed over a period of time, and not a single dump. If something like bringing the meteors over into our orbit, then it could effect our orbit, or effecting the tides on our ocean, and again it would be minute, and definitely not in the level of how moon impacts on us. to really do some damage, we would need to bring in semi planets or failed planets (overly large asteroids that failed in forming a stable structure) into our geostationary orbit, then the fun starts. We might see earth playing ringa ringa roseses. ( Though I'm not sure if brings more or less calamity , surely much more than bringing meteors into the orbit).
Um, no? It's mainly the gravitational/magnetic force fields affecting the Earth's revolution. The orbit? It will just get denser with more material orbiting in the disc.