2 ms·

How so?

• squarefoot 4y ago
  By assembling parts of the probes and launching from there for example. It would require a lot of time initially, that's why I specified in the long run.
• hypertele-Xii 4y ago
  The hardest part in exploring our solar system is escaping Earth's gravity. Most of the fuel in our rockets and by extension, most of the rocket itself, exists to lift the actual spacecraft off the Earth. If you can manufacture it on the Moon, you need a lot less rocket.