关于这张图
A model of a tiny, wedge-shaped robot designed to explore subsurface oceans of icy moons, right, sits beside a large waterproof capsule containing electronics and sensors for testing below glacial ice at the Juneau Icefield in Alaska in July 2023. The model, about 5 inches (12 centimeters) long, was 3D-printed to show the final envisioned size of a futuristic NASA mission concept called SWIM, short for Sensing With Independent Micro-swimmers. Led by NASA's Jet Propulsion Laboratory from spring 2021 to fall 2024, SWIM envisions a swarm of dozens of self-propelled, cellphone-size robo…
