行星状星云Mz3: 蚂蚁星云
2021年04月25日 Planetary Nebula Mz3: The Ant Nebula Image Credit: R. Sahai (JPL) et al., Hubble Heritage Team, ESA, NASA Explanation: Why isn’t this ant a big sphere? Planetary nebula Mz3 is being cast off by a star similar to our Sun that is, surely, round. Why then would the gas that is streaming away create an ant-shaped nebula that is distinctly not r...