Object 32

Tianxia

2030, Shanghai, China

This object has not been published online.
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How far back in time would you like to go? To the Ice Age 150,000 years ago to warm things by just a few degrees and help the hominids out? Or perhaps 65 million years, to nudge an asteroid's path so it avoids Earth and prevents a mass extinction? How about 1.4 billion years, to fine-tune the ...