We understand the technologies required but NASA’s budget is only $21.5 billion for 2019 – and due to decrease in 2020. If we wanted to go we could, but no-one in power thinks it’s a priority. We could probably make some scientific advances with human exploration of the solar system, however it’s hard to see what benefit there would be over using robotic vehicles. The real challenges of space exploration aren’t going on sight-seeing trips around the solar system, but are in solving the challenges of traveling between stars in time frames that make human exploration feasible. That would require a step change in technology as significant as moving from the stone age to the nuclear age. Just my opinion, but spending a ton more money on the lab coats down here on earth would be the best step we could make to advance space exploration.
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