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Welcome to Space Exploration Harry. I'm guessing you are talking about the Breakthrough Starshot proposals? The original idea was for a flyby of the target system because it was assumed that there would be no way to slow down the spacecraft once it had accelerated to 20% of the speed of light. As we know from Newton's First Law: An object at rest will ...


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Interstellar Technologies (in Wikipedia) is a Japanese startup based in Hokkaido Japan. They began as a group of rocketry hobbyists and have a 20 year history. Their website shows "Codename Zero", so it's logical to conclude that while it is currently using "Zero" there may be a different name once it is ready to launch. Interstellar's current rocket "...


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