A. NASA
B. CNSA
C. JAXA
D. ISRO
Explanation:
The National Aeronautics and Space Administration (NASA) on December 9, 2021, launched a new X-Ray mission that aims at unlocking the secrets of the black hole and other extreme cosmic objects. NASA’s new X-ray space observatory is one of its kind and is called the Imaging X-ray Polarimetry Explorer or IXPE.