星际空间来的博里索夫彗星
2019 December 14 Interstellar Comet 2I/Borisov Image Credit: NASA, ESA, and D. Jewitt (UCLA) et al. Explanation: From somewhe…
博里索夫彗星
2019 December 14 Interstellar Comet 2I/Borisov Image Credit: NASA, ESA, and D. Jewitt (UCLA) et al. Explanation: From somewhe…