Science ·
非营利组织计划以不到1500万美元开展耗时8万年的半人马座阿尔法之旅
总部位于雷德蒙德的一家非营利组织希望在2029年前发射首艘专门瞄准另一恒星系统的航天器,采用人工智能规划的轨迹,预算甚至低于许多单颗卫星。
本文由AI根据下方引用的来源综合生成。
一家新成立的名为“费米探索者任务”(Fermi Explorer Mission)的非营利组织表示,计划发射人类首艘专门瞄准另一恒星系统的航天器——并希望在2029年底前以不到1500万美元的成本实现这一目标。
目标是半人马座阿尔法星,即太阳最近的恒星邻居,距离约为4.4光年。由于目前不存在能让航天器快速抵达那里的推进技术,该任务不得不接受一个几乎难以想象的时间线:探测器实际上要再过约8万年才能抵达——那时,所有参与建造它的人,以及今天在世的所有人,早已不在人世。
该项目由Starcloud联合创始人菲利普·约翰斯顿(Philip Johnston)、阿迪·奥尔特安(Adi Oltean)和埃兹拉·费尔登(Ezra Feilden)发起,他们专门为此任务在华盛顿州雷德蒙德成立了这家非营利组织。他们为自己设定的规则十分严格:航天器必须瞄准半人马座阿尔法星,至少携带1公斤有效载荷,须在2029年底前发射,且设计、建造、发射和运营的总成本必须低于1500万美元——这只是典型星际任务成本的一小部分。
为了达到这一预算目标,该任务依靠一条不同寻常的轨迹。航天器从运载火箭分离后,将反复绕地球和太阳运行,通过一系列被称为“近日点抽运”的引力辅助机动来积累速度,最终摆脱束缚飞向星际空间。这条路径并非由传统的轨道力学团队发现,而是由物理超级智能(Physical Superintelligence,简称PSI)打造的人工智能系统计算得出——这是一家从隐身状态浮出水面、获得5800万美元种子轮融资的人工智能物理研究实验室。
这项任务能否最终抵达目标,显然是今天在世的任何人都无法验证的,怀疑者也会指出,一段长达8万年的旅程根本无法保证航天器能在如此极端的时间跨度内挺过星际尘埃、辐射或单纯的硬件故障。但该团队所宣称的目标其实并不在于最终能否抵达——而在于低成本、尽早地证明:一艘小型、低成本的航天器完全可以被有意地发射向另一颗恒星,而这是此前从未有任何任务正式尝试过的事情。
Key facts
- Fermi Explorer Mission aims to launch by the end of 2029 for under $15 million
- Target is Alpha Centauri, about 4.4 light-years away
- The journey itself is expected to take roughly 80,000 years
- Trajectory was plotted by an AI system from Physical Superintelligence (PSI)
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