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Wolf cubs (Getty/JohnPitcher)

Reintroducing predators doesn’t always rebalance ecosystems

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This computer graphic image provided by the Japan Aerospace Exploration Agency (JAXA) shows two drum-shaped and solar-powered Minerva-II-1 rovers on an asteroid. Japanese unmanned spacecraft Hayabusa2 released two small Minerva-II-1 rovers on the asteroid Ryugu on Friday, Sept. 21, 2018. (JAXA via AP)

Robotic skins might enable the next generation of space exploration

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