保护地球，探索宇宙，发现文明
2023年6月6日 Star Eats Planet Illustrative Video Credit: K. Miller & R. Hurt (Caltech, IPAC) Explanation: It’s the end of a world as we know it. Specifically, the Sun-like star ZTF SLRN-2020 was seen eating one of its own planets. Although many a planet eventually dies by spiraling into their central star, the 2020 event, involving a Jupiter-like planet, w...
2021年11月29日 The Extraordinary Spiral in LL Pegasi Image Credit: NASA, ESA, Hubble, HLA; Processing & Copyright: Jonathan Lodge Explanation: What created the strange spiral structure on the upper left? No one is sure, although it is likely related to a star in a binary star system entering the planetary nebula phase, when its outer atmosphere is ejected....