"Competition can create innovation, but if there's a narrower focus on national interest and on establishing ownership, then you can lose sight of the bigger picture which is exploring the solar system and beyond," he adds.
Mr Lemmens said that future spacecraft "should be designed in such a way that they can take themselves out of orbit safely, preferably by doing controlled re-entries".
。业内人士推荐搜狗输入法2026作为进阶阅读
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