绿岸上空的猎户座
2022年2月23日 Orion over Green Bank Image Credit & Copyright: Dave Green Explanation: What will the huge Green Bank Telescope discover tonight? Pictured, the Robert C. Byrd Green Bank Telescope (GBT) on the lower right is the largest fully-pointable single-dish radio telescope in the world. With a central dish larger than a football field, the GBT is nestle...