alt Hacker NewsSatellites aren't pointed at "all parts of the planet". They're generally taking regular photos of known locations, when the right type of satellite passes over. That's where you get lucky shots like the one you noticed. Then that satellite has to orbit, and there isn't another one nearby just ready to take another photo. Then the carrier changes direction...
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Sure any single one but there are many companies, some with hundreds of satellites in orbit at any given time who will point it where ever if you pay them enough
Which is why you get things like this https://www.cnbc.com/2026/04/05/satellite-firm-planet-labs-t...
An aircraft carrier is not that fast, if you see it once you know roughly what radius of circle it is going to be in for a while (ignoring the fact that they are likely going somewhere for a reason its not their job is to say out of sight)
edit: aha that company literally lists it on their website https://www.planet.com/industries/maritime/
Now I’m contemplating just how small and light of an instrument could be carried on a Starlink-style satellite that could detect a large ship. A smallish COTS telescope, e.g. a Celestron 8SE ($1700 retail) could easily see a ship from the Starlink constellation altitude.
Never mind that the Starlink radio arrays are, well, radio arrays that quite effectively cover the whole planet. If you think of each satellite as a radio telescope, its resolution is crap and probably cannot disambiguate a carrier group from anything else (at least according to disclosed specs). But it would be quite interesting to build a synthetic aperture array out of multiple satellites. This would rely on emissions from the ships themselves, but I bet it could be done and could locate ships quite nicely.