So the idea is to slowly mine a planet away , one like Mercury or Venus or Mars. Doesn't matter why or how. Only one of these planets would be removed.

How the Solar system would react?

Earth will be affected? If yes how?

Are we gonna change our position relative to the Sun if , let's say, Mercury were to be mined away?

The astronomical changes concerns me the most.

  • $\begingroup$ Where does the mining material go? Bringing all the mass of Venus to Earth and shipping it to Pluto will have very different effects. (In the first case everybody dies, in the other case nothing much happens.) Please edit the question to specify the destination of the material. $\endgroup$ – AlexP Mar 13 at 13:37
  • $\begingroup$ For Earth, the planet needs more materials $\endgroup$ – user73258 Mar 13 at 13:38
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    $\begingroup$ There are many questions. And few of them are opinion based. Could you make somechanges and stick to one option, what planet, where it goes, what interest you more, solar system or the place where tha mass move to? $\endgroup$ – SZCZERZO KŁY Mar 13 at 13:43
  • $\begingroup$ @SZCZERZOK┼üY Its a game, so you can chose any of those three planets,goes to Earth, Earth is really low on everything and any material is important, the solar system and the changes that would follow concern me the most $\endgroup$ – user73258 Mar 13 at 13:47
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    $\begingroup$ If you use the disassembled planet to build space habitats and other orbital infrastructure, you can safely put them into any stable orbit around the Earth or Sun so long as they are carefully distributed so their net gravitational effect cancels out. If instead you're bringing the mass onto Earth's surface, it will increase Earth's gravity and diameter and would require moving our moon (if it wasn't already disassembled) into a higher orbit (or speeding it up in its current orbit) to compensate. $\endgroup$ – Lawton Mar 13 at 18:10

It wouldn't affect our solar system for the simple reason, around 99.85% of all the mass in the system is accumulated within our sun. And from the remaining mass, the stone planets (Mercury, Venus, Earth, Mars) only contibute a small fraction.

On the other Hand, if you would mine away say Jupiter (two times the mass of all other planets combined) (nevermind where you go with all that mass) earth would loose it's asteroid shield.

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  • $\begingroup$ it's a gonna be a game, the player can chose between those three planets. Jupiter is out of the question cuz it's too far away $\endgroup$ – user73258 Mar 13 at 13:48
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    $\begingroup$ Wrong. Try moving Jupiter a tad closer to the Sun, and see how it wrecks the entire solar system, despite 99.85% of the mass being in the Sun. $\endgroup$ – L.Dutch - Reinstate Monica Mar 13 at 13:50
  • $\begingroup$ @L.Dutch - Reinstate Monica I know. But the question was about removing one of the stone planets, which do not have enough mass to influence earth's orbit in any significant way if removed. $\endgroup$ – OneSaltyAceTanker Mar 13 at 13:53
  • $\begingroup$ Adding the mass of a rocky planet to Earth would completely alter the Earth-Sun-Moon system orbits. The effects would be devastating (and that's ignoring the planet contracting to a new equilibrium size and density profile due to the added mass). $\endgroup$ – StephenG Mar 13 at 14:12
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    $\begingroup$ @StephenG Possibly the mass of the mined planet would be used to build countless millions of space habitats, or build a Dyson swarm, instead of being added to Earth. $\endgroup$ – M. A. Golding Mar 13 at 15:47

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