Comment on Datacenters in space are a terrible, horrible, no good idea.

• erin@piefed.blahaj.zone ⁨2⁩ ⁨weeks⁩ ago

  Geostationary satellites are not standing still. They’re orbiting the Earth at the same rate that it rotates “beneath” them.

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• nabladabla@sopuli.xyz ⁨2⁩ ⁨weeks⁩ ago

  Um, it doesn’t make the data center in orbit thing make sense, but a geostationary satellite absolute moves at high speed and does not stay in the same place in space.

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  • JcbAzPx@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    The heat would be moving at the same speed. Though, that does mean it wouldn’t be any better in any other orbit.

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    • Fermion@mander.xyz ⁨2⁩ ⁨weeks⁩ ago

      Heat energy is primarily dissipated as infrared light which moves at the speed of light. There is no way for space to accumulate heat. If that were the case the entire solar system would be unlivable. The IR emitted by satellites is truly negligible in comparison to the electromagnetic radiation emitted by the sun.

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    • nabladabla@sopuli.xyz ⁨2⁩ ⁨weeks⁩ ago

      Again, it doesn’t help the case, but just… no. The heat gets out of the spacecraft by radiating, and radiation doesn’t move in a circular orbit around Earth, it moves at speed of light outwards from where it started.

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• Fermion@mander.xyz ⁨2⁩ ⁨weeks⁩ ago

  Radiators in space work by radiating electromagnetic energy(light). Heat can only accumulate in matter, not in space, so that is definitely not one of the things we need to worry about.

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• wewbull@feddit.uk ⁨2⁩ ⁨weeks⁩ ago

  Super heat what in that space? The point is there’s nothing to transfer heat to. All you can do is radiate infra-red light.

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• teft@piefed.social ⁨2⁩ ⁨weeks⁩ ago

  geostationary then its even harder as the the data center doesn’t move away from the heat.

  Geostationary would leave the satellite in shadow anytime it was night time over the part of the earth since a geostationary orbit is stationary in the sky over a given point at the equator.

  That doesn’t solve any of the cooling problems just saying that you do get some shadow at geostationary orbits.

  There are other orbits that get less shadow though.

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  • wewbull@feddit.uk ⁨2⁩ ⁨weeks⁩ ago

    It’ll be in shadow at midnight, yes, but not necessarily at any other time. Geostationary orbit is at about 7x the radius of the earth.

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    As such, the period when in will actually be in shadow is only a short period directly behind the planet.

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