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人们总说宇宙很大，但是它到底有多大？科学家制定了一项雄心勃勃的计划，要画出一幅完整的宇宙地图。然而在可观测宇宙中，有1700亿个类似银河系的星系，不单这些星系在移动，整个宇宙也并非静止不动，甚至有科学

The world's most enormous machines are stripped down and torn apart to discover their hidden sec

Food Evolution looks at one of the most critical questions facing the world today-that of food secur

Historians Ruth Goodman, Alex Langlands and Peter Ginn bring back to life the golden age of steam an

　　A Japanese salaryman goes on an unwitting journey of self-discovery when he takes a business trip

富二代提多亟欲向心上人寶拉證明自己。他向她謊稱出身貧困，怎料謊言卻變得一發不可收拾。

After his four siblings mysteriously die in their first weeks of college, a paranoid freshman must p

1998 年，一名 23 岁的女子在加勒比海游轮上失踪，她的家人坚持不懈地寻找答案。这部真实犯罪题材剧集对本案进行了探讨。

Recurring nightmares and the aftermath of a violent break-up have put Leni on edge. As she desperate

Based on the hugely successful first-person shooter game (over　　30 million downloads), DEAD TRIGGE