Given realistic propulsion options, and the requirement that the spacecraft can slow down to orbit its target, the target star cannot be more than 15 light-years from Earth.
根据实际的推进选择，以及航天器能够减速以环绕其目标公转的需要，目标恒星不能离地球超过15光年。
This is what you term the 'Secret Space Program' because they use Secret Black Budget funding to go out by magnetic light and not propulsion.
这就是你们所说的“秘密太空计划”，因为他们用秘密黑芽基金，通过地磁光而非推动力对外扩张。
There isn't enough room here to discuss the various propulsion schemes for accelerating a craft to at least 1/10th the speed of light.
没有太多的余地可以考虑，以将航空器加速到至少光束的十分之一。
The carbon dioxide and monoxide were detected by Mark Swain, a research scientist at NASA's Jet Propulsion Laboratory in California, using Hubble to study infrared light emitted from the planet.
美国宇航局加利福尼亚州喷气推进实验室的科学家马克斯温，利用哈勃太空望远镜研究了该星球发射的红外线，发现了二氧化碳和一氧化碳。
The term breakthrough propulsion refers to concepts like space drives and faster-than-light travel, the kind of breakthroughs that would make interstellar travel practical.
突破推进一词是指实际的空间概念，如驱动器和快于光旅行，旅行的一种突破，这将使星际。
The term breakthrough propulsion refers to concepts like space drives and faster-than-light travel, the kind of breakthroughs that would make interstellar travel practical.
突破推进一词是指实际的空间概念，如驱动器和快于光旅行，旅行的一种突破，这将使星际。
应用推荐