保护地球，探索宇宙，发现文明
2023年9月9日 Comet Nishimura Grows Credit & Copyright: Peter Kennett Explanation: Comet Nishimura is growing. More precisely, the tails C/2023 P1 (Nishimura) are growing as it nears the Sun. Discovered only last month, the comet is already near naked eye brightness as it now moves inside the Earth’s orbit. The comet will be nearest the Earth next wee...
2023年9月3日 Comet Schwassmann-Wachmann 3 Fragments Credit: NASA, ESA, H. Weaver (JHU / APL), M. Mutchler and Z. Levay (STScI) Explanation: Periodic comet 73P/Schwassmann-Wachmann 3 has broken up at least twice. A cosmic souffle of ice and dust left over from the early solar system, this comet was first seen to split into several large pieces during the close-i...