保护地球，探索宇宙，发现文明
2021年05月27日 Mid-Eclipse and Milky Way Image Credit & Copyright: John Kraus Explanation: May’s perigee Full Moon slid through Earth’s shadow yesterday entertaining night skygazers in regions around the Pacific. Seen from western North America, it sinks toward the rugged Sierra Nevada mountain range in this time-lapse series of the total lunar...
2020 May 2 Radio, The Big Ear, and the Wow! Signal Image Credit & Copyright: Rick Scott Explanation: Since the early days of radio and television we have been freely broadcasting signals into space. For some time now, we have been listening too. A large radio telescope at Ohio State University known as affectionately The Big Ear was one of the first lis...