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...
2019 September 6 Recycling Cassiopeia A Image Credit: X-ray - NASA, CXC, SAO; Optical - NASA,STScI Explanation: Massive stars in our Milky Way Gal...