珠穆朗玛峰上空的金星带
2023年6月26日 The Belt of Venus over Mount Everest Image Credit & Copyright: Soumyadeep Mukherjee Explanation: You’ve surely seen it, but you might not have noticed it. During a cloudless twilight, just before sunrise or after sunset, part of the atmosphere above the horizon appears slightly dark and off-color. Called the Belt of Venus, this transitio...