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Anybody out there? 美科学家计划向外星发送新信息 The story of The Three-Body Problem follows how humans contact aliens in a faraway solar system. 《三体》讲述了人类如何与遥远星系的外星人接触。 Liu Cixin's modern sci-fi classic shows that after making contact, people on Earth will face many problems — including the danger of invasion! 刘慈欣的这部现代经典科幻小说表明，地球人一旦与外星人接触，将面临许多问题——包括遭到入侵的危险！ Similar to the novel, a team from the United States' NASA space agency, led by scientist Jonathan Jiang, wants to send a new message into the stars. 与小说情节类似，一个来自美国国家航空航天局（NASA）的团队，科学家乔纳森·姜领导着该团队想要向外星发送新的信息。 According to Scientific American, the technology needed to send the message is not yet ready. 据《科学美国人》报道，发送信息所需的技术尚未成熟。 Regardless, the scientists hope humanity can now have a serious discussion about if and how we should talk to aliens, reported the US-based science magazine.           
Even if we send a message, none of us will be around for the reply.
It will take millennia to reach the target galaxy.
So, why should we send it at all?
"We want...to say, 'Hey, we are here,' even if we are not here some years later," Jiang, an astrophysicist at NASA's Jet Propulsion Laboratory (JPL) in California, told Live Science.
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