# European Space Agency developing gecko-like robot that can crawl along spacecraft (HT Tech) > The six-legged climbing robot will be the forerunner of automatons which crawl along spacecrafts, cleaning and maintaining them. Abigaille will be able to move from vertical to horizontal surfaces by clinging to them using a gecko-inspired dry adhesive technology. # European Space Agency developing gecko-like robot that can crawl along spacecraft ## The six-legged climbing robot will be the forerunner of automatons which crawl along spacecrafts, cleaning and maintaining them. Abigaille will be able to move from vertical to horizontal surfaces by clinging to them using a gecko-inspired dry adhesive technology. Jan 02 2014, 20:12 IST ![Follow on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/follow-us-facebook.png) ![Follow on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/follow-us-facebook-hover.png) ![Share](https://images.hindustantimes.com/tech/static/revamp/images/png/Share.png) ![Share](https://images.hindustantimes.com/tech/static/revamp/images/png/Shareclicked.png) ![Share on WhatsApp](https://images.hindustantimes.com/tech/static/revamp/images/png/whatsapp.png) ![Share on WhatsApp](https://images.hindustantimes.com/tech/static/revamp/images/png/whatsapp-hover.png) ![Share on Twitter](https://images.hindustantimes.com/tech/static/revamp/images/png/twitter.png) ![Share on Twitter](https://images.hindustantimes.com/tech/static/revamp/images/png/twitter-hover.png) ![Share on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/facebook.png) ![Share on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/facebook-hover.png) ![Bookmark](https://images.hindustantimes.com/tech/static/revamp/images/png/Bookmark.png) ![Bookmarked](https://images.hindustantimes.com/tech/static/revamp/images/png/Bookmarked.png) ![image caption](https://images.hindustantimes.com/tech/rf/image_size_800x600/HT/p1/2014/01/02/Incoming/Pictures/1168652_Wallpaper2.jpg) ![Author Photo](https://images.hindustantimes.com/tech/static/revamp/images/png/HTTech-new-circle-logo.png) ### By AFP A wall-crawling robot inspired by the gecko has taken a small but important step towards a future in space, scientists said on Thursday. The tiny legged prototype could be the forerunner of automatons which crawl along the hulls of spacecraft, cleaning and maintaining them, the European Space Agency (ESA) said. Its footpads are covered with dry microfibres modelled on the toe hair of the gecko, which is celebrated for its ability to scuttle up windows and along walls yet not leave a trace. Also read click here. The lizard does the trick through millions of ultra-fine hairs called setae, which interact with the climbing surface to create a molecular attraction known as the van der Waals force. Researchers at Canada's Simon Fraser University first built a 240-gramme (eight-ounce) tank-like gecko-bot, using tracks with microfibre treads. They then developed this into a six-legged climbing robot, nicknamed Abigaille. ![image caption](https://images.hindustantimes.com/tech/Images/popup/2014/1/gecko.jpg) 'This approach is an example of biomimicry, taking engineering solutions from the natural world,' said team leader Mike Henrey. The 'dry adhesive' that helps Abigaille climb walls has now been put through its paces at a materials-testing lab at ESA's European Space and Technology Centre (ESTEC) in Noordwijk, the Netherlands. Replicating the vacuum and temperatures of space, but not the zero gravity, the tests found that the adhesive worked like a charm, the agency said. 'A depth-sensing indentation instrument was used inside a vacuum chamber to precisely assess the dry adhesive's sticking performance,' ESA specialist Laurent Pambaguian said in a press release. 'Experimental success means deployment in space might one day be possible.' Abigaille's six legs each have four degrees of freedom, which enables the 'gecko-bot' to shift from horizontal to vertical environments. Dry adhesives in space are compelling because other options have to be ruled out for safety reasons. Sticky tape is a no-no because it collects dust, becomes less sticky over time and in a vacuum gives off fumes. Magnets, too, are out as they cannot stick to composite surfaces and their magnetic field could affect instruments. And Velcro is also excluded, as it needs a mating surface of hooks -- and these can break off and become a hazard. Gecko setae are microscopic: their ends are just 100-200 nanometres, or 100-200 billionths of a metre, across. By comparison, the human hair is gigantic, being around 100,000 nanometres in diameter. 'We've borrowed techniques from the micro-electronics industry to make our footpad terminators,' said Henrey. 'Technical limitations mean these are around 100 times larger than a gecko's hairs, but they are sufficient to support our robot's weight.' Catch all the Latest Tech News, Mobile News, Laptop News, Gaming news, Wearables News , How To News, also keep up with us on Whatsapp channel,Twitter, Facebook, Google News, and Instagram. 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