How JPL keeps the 13-year-old Curiosity rover doing science

(spectrum.ieee.org)

106 points | by pseudolus 3 hours ago

5 comments

  • rented_mule 2 hours ago
    The total cost of Curiosity to date is well under 5% of the cost of the recent trip humans took around the moon (something like $3B vs. $90B, or $20 vs. $600 per US taxpayer). Imagine the amount of science that could get done if we gave even half the budget of crewed spaceflight to rover / probe style exploration.
    • thegrim33 25 minutes ago
      Yes, and Curiosity weighs 899kg, whereas a single SLS launch can put 26,988kg of robots, cargo, and humans into trans-lunar orbit.
    • andyjohnson0 53 minutes ago
      > Curiosity [...] has traveled nearly 37 kilometers, drilled into and sampled 42 different rocks, and as of publication has snapped nearly 763,000 photos.

      Without in any way minimising the amazing scientific and engineering achievements of the team and the rover: we need crewed space exploration because people on Mars would be able to do the above in significantly less than thirteen years. Or, to put it another way, would do much more science in the same amount of time.

      • Thrymr 42 minutes ago
        > much more science in the same amount of time.

        I'm not convinced by the time argument, as astronauts would have limited time on Mars dictated by orbital mechanics and return schedules, but the bigger problem is cost. You are replying to a comment about how rovers and probes are cost effective; there is no way that crewed exploration could accomplish more science than Mars rovers without orders of magnitude more cost.

        • tkcashman 27 minutes ago
          A manned mission to Mars isn't even on the table yet (sorry, Elon) until we solve several huge problems, including cosmic radiation, landing heavy payloads, and a feasible alternative to chemical propulsion (most likely nuclear, but untested).
        • rented_mule 38 minutes ago
          And if we're keeping costs proportional, send orders of magnitude more rovers and that helps the time argument for rovers as well.
    • drstewart 11 minutes ago
      Suddenly HN is very pro automating human jobs with machines because it's cheaper
    • zbendefy 1 hour ago
      Maybe we would get a microphone on mars. Just kidding i know air pressure is vastly different, but still it would be cool to listen to ambient sound from there
  • squeedles 24 minutes ago
    Was excited to hear that they have a lower power rad-hard snapdragon system going into the new missions! The RAD 750 is basically a 30-year old IBM RS-6000. Very well known, but has been the goto CPU for way longer than I thought it would be.
  • ezst 2 hours ago
    Curiosity is a teenager now? Damn, I didn't need to feel this much older today..
  • MinimalAction 1 hour ago
    I am happy to know this emblem of knowledge stream keeps coming until 2035. It is wonderful to know our innovations have flown 200 odd million miles and work for so long!
  • beastman82 1 hour ago
    Jet Propulsion Laboratory, for those who are missing basic writing standards.
    • xp84 42 minutes ago
      JPL has been around for over 80 years now -- I'm not sure that assuming basic familiarity with it, among people who would care about the Curiosity rover, is even a controversial choice, let alone 'substandard' writing.

      I think especially for an organization like JPL, where the name is far from a full description of what they're currently about anyway, people tend to just think of them as 'JPL' rather than how we think of, say, the United Nations.

      Edit: Also, all a reader even needs to know is what the sentence already directly implies -- that "JPL" are the ones in charge of operating Curiosity. It's like saying "How AMR Corp keeps American Airlines flying during challenging times for aviation"

      • DharmaPolice 16 minutes ago
        I do care about the Curiosity rover but I'll be honest that I only know JPL from The Martian.