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New Satellite Engine Could Use Earth's Atmosphere to Stay in Orbit Indefinitely

68 points · 15 comments · GordonS

  1. chris_va · · focus · HN ↗
    Very much not a new idea: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Very_low_Earth_orbit" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Very_low_Earth_orbit

    Though fun to see. More interesting than the station keeping (indefinite part) is that it enables ~100km orbits, which are ~5x closer than what remote sensing satellites use today and thus could get 5x the resolution for the same instrument.

    1. Someone · · focus · HN ↗
      &gt; ~5x closer than what remote sensing satellites use today and thus could get 5x the resolution for the same instrument.

      I would think a bit less. You won’t get a factor of 5 decrease in atmosphere to watch through and I would guess you’d get more vibration.

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