保护地球，探索宇宙，发现文明
An illustrated spiral is shown depicting many significant events that have occurred since the big bang. The big bang is at the center, and a city built by humans is at the spiral’s end. Please see the explanation for more detailed information.
这张图所示的时间螺旋，呈现了其中的一些重要里程碑。螺旋的中心是大爆炸，人类建造的城市位于螺旋的末端。有关更多详细信息，请参阅说明。
2022年9月17日 Perseverance in Jezero Crater’s Delta Image Credit: NASA, JPL-Caltech, MSSS, ASU Explanation: The Perseverance rover’s Mastcam-Z captured images to create this mosaic on August 4, 2022. The car-sized robot was continuing its exploration of the fan-shaped delta of a river that, billions of years ago, flowed into Jezero Crater on Mars. S...
2021年01月02日 21st Century Wet Collodion Moon Image Credit & Copyright: Mike Smolinsky Explanation: In the mid 19th century, one of the first photographic technologies used to record the lunar surface was the wet-plate collodion process, notably employed by British astronomer Warren De la Rue. To capture an image, a thick, transparent mixture was used to ...