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Can someone explain to me how we're only discovering these moons in 2023? Do we really not have sensitive enough instruments to see rocks over a mile in diamete

• hackernewds 3y ago
  No.
• zeroonetwothree 3y ago
  It’s equivalent to seeing an object one micron in size at a distance of a mile. Or like seeing something one nanometer in size at a distance of 1 meter (for example that’s about the size of a water molecule). And it’s constantly moving.
  • ragebol 3y ago
    > And it’s constantly moving Against a background with other stuff, that might be brighter, also moving etc etc.
• gorgoiler 3y ago
  A lot of these search problems are easier to wrap ones head around with the keys analogy: finding a moon around Saturn, or finding a lost ship on the ocean* is like losing your car keys in a field then trying to find them with a pair of binoculars. If you do actually know where they are then you can easily see them with the binoculars but if you need to perform a search it is laborious because of the relative scales. * https://en.m.wikipedia.org/wiki/MV_Arctic_Sea https://en.m.wikipedia.org/wiki/MV_Arctic_Sea