遙遠未來的時間線

遥远未来的时间线涵括了从公元5千纪（即公元41世纪）开始（即公元4001年以后）直到所能预见到的未来会发生的事件。鉴于有些问题悬而未决，年表罗列了人类会否灭绝、质子会否衰变，或是当太阳膨胀成红巨星时地球会否存活下来等不同学说提出的不同预测观点。 虽然未来会发生的事件充满变数，但当前的科学技术已可以大致预测、估算到一些会在遥远未来发生的事件。这些相关领域有天体物理学（研究行星与恒星形成、互动、湮灭）、粒子物理學（研究物质在极小尺度中的相互作用）、演化生物学（研究生命演化）、板块构造学说（研究陆地板块漂移）、气候学（研究气候对生存环境的影响）、材料科学（研究不同材料的性质）和社会学（研究人类社会变迁）。 所有关于地球、太阳系乃至宇宙未来的预测都要考虑热力学第二定律的影响，该定律强调封闭系统的熵，或者说可用于做功的能量的流失，必然随时间推移而逐渐增大。恒星会逐渐耗光内部的氢燃料并燃烧殆尽。天体相互接近时，受引力影响，行星会从它们所在的恒星系中被剥离出去，恒星系则会从星系中被剥离。 物理学家预测，物质会因放射衰变而逐渐瓦解，就算最为稳定的物质都会衰变为亚原子粒子。目前数据显示宇宙近乎扁平，有限时间内不会坍缩成一点。意味着未来的时间是无限，那些几近不可能发生的事件也就有可能发生。 目前人类发射的航天器中，计划飞出太阳系、驶向星际空间的共有五枚，分别是：旅行者1号、旅行者2号、先驱者10号、先驱者11号和新视野号。这些航天器与其他天体相撞的几率十分渺小，极可能会一直飞行下去。 宇宙年表 地球在宇宙中的位置 数量级 (时间) 在外太空中生存（英语：Space and survival） 宇宙形成年表 自然历史年表（英语：Timeline of natural history） 膨胀宇宙的未来 宇宙的終極命運 虚构作品中的遥远未来 未来天文现象列表 此时间为统计学概率估算出的发生时间。实际上，该事件在任意时间点均可能发生。 基于一个太阳质量、用加权最小二乘法估算的结果。 虽然此处单位用的是“年”，但实际在这样的时间尺度中，时间的单位已经不重要了。 编程语言的系统时间上限取决于其运行的操作系统。 苹果开发者文档并没有清晰地说明CFAbsoluteTime/CFTimeInterval的精度和范围，只有在CFRunLoopTimerCreate方法中说明“精度最多在毫秒级”。不过可以互换的类型NSTimeInterval （页面存档备份，存于互联网档案馆）则列出了具体的精度和范围。 Java的系统时间构造器Date可取64位整数，从1970年1月1日0时算起，在1毫秒的精度下可求得此值。 Rescher, Nicholas. 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