保护地球，探索宇宙，发现文明
2022年5月2日 Partial Solar Eclipse over Argentina Image Credit & Copyright: Aixa Andrada Explanation: What’s happened to the Sun? Two days ago, parts of South America were treated to a partial solar eclipse — where the Moon blocked out part of the Sun. The featured image shows an image of the partially eclipsed Sun through clouds as it was sett...
2020年11月25日 Andromeda over Patagonia Image Credit & Copyright: Gerardo Ferrarino Explanation: How far can you see? The Andromeda Galaxy at 2.5 million light years away is the most distant object easily seen with your unaided eye. Most other apparent denizens of the night sky — stars, clusters, and nebulae — typically range from a few hundred...