科学与环境

Verdict delayed on controversial sea defences

来源: feeds.bbci.co.uk · 发布于

Verdict delayed on controversial sea defences
来源: feeds.bbci.co.uk

The council have deferred a decision on the building of 17 rock groynes after RNLI safety concerns.

The council have deferred a decision on the building of 17 rock groynes after RNLI safety concerns.

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Mars dust may be less abrasive than lunar dust, spacesuit samples suggest
科学与环境

Mars dust may be less abrasive than lunar dust, spacesuit samples suggest

Tucked away among its sensors, cameras and navigation tools, NASA's Mars rover Perseverance is wearing small swatches of spacesuit material. A rover doesn't need a spacesuit, but the swatches—each less than a square inch (6.5 square centimeters) in size—serve an important purpose

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