关于这张图
Taken by NASA's Juno spacecraft, this black-and-white photo of the surface of Jupiter's icy moon Europa reveals a curious feature – shaped somewhat like the musical symbol for a quarter note – surrounded by a vast network of linear ridges and dark blotches. It was obtained by Juno's Stellar Reference Unit (SRU) during the spacecraft's Sept. 29, 2022, flyby of Europa. The image shows a region crisscrossed with a network of fine grooves and sets of complicated double ridges (pairs of long parallel lines indicating elevated features in the ice). In the upper right corner are dark stains possibly…
