Can Chinese scientists bring Nasa’s ‘space spider’ dream to life?

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For years, Nasa funded a dream called SpiderFab – a spider-like robot that would crawl through orbit, weaving solar power stations and giant antennas from spools of carbon fibre – creating structures too large for any rocket to carry whole. Although SpiderFab never ended up in space, scientists from the Shenyang Institute of Automation in northern China say they have built the key technologies to reach a similar goal...