回收仙后座A
2019-09-06
2019 September 6 Recycling Cassiopeia A Image Credit: X-ray - NASA, CXC, SAO; Optical - NASA,STScI Explanation: Massive stars in our Milky Way Gal...
X射线
超新星遗迹中的元素分布
2019-08-02
2019 August 1 Elements in the Aftermath Image Credit: NASA/CXC/SAO Explanation: Massive stars spend their brief lives furiously burning nuclear f...