This is the explosion of a massive star blazes, or a supernova, observed by the NASA Hubble Space Telescope. The bright spot at top right of the image is a stellar blast, called a supernova. The Neutron Star Interior Composition Explorer (NICER) investigation, affixed to the exterior of the International Space Station, studies the physics of these stars, providing new insight into their nature and behavior.
NASA, ESA, A.V. Filippenko (University of California, Berkeley), P. Challis (Harvard-Smithsonian Center for Astrophysics), et al.