• Jarix@lemmy.world
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    1 day ago

    I was assuming rockets were an option like going to the moon. Cost wasnt something i thought we were factoring in thats not really a factor in just trying to send a space ship at the sun and having it get there. It doesnt have to be moving fast (relatively) to get there so you just need good aim and to keep it on track.

    Cost should be its own problem separate from the objective. Assume 0 costs, how hard would it be?

    • SocialMediaRefugee@lemmy.ml
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      24 hours ago

      It requires a LOT of energy to counter the earth’s orbital motion. Hitting the moon is different because the moon is traveling with the earth and you are going outwards. Energy is always part of the equation since orbital mechanics is all about energy. You can’t ignore it by saying “Assume 0 costs, how hard would it be?” then we could just say it can approach the speed of light since we are ignoring any energy costs.

      “It doesnt have to be moving fast”

      But you will be moving fast, you are starting at an angular speed of 30km/s. The Apollo missions with their massive engines reached 11 km/s. Now think of someone wanting to dump hundreds of tons of nuclear waste into the sun and the energy that would require.

      Maybe this explains it better:

      https://www.youtube.com/watch?v=LHvR1fRTW8g