Supernova from the year 185: a rare view of the entirety of this supernova remnant

A nearby supernova explosion could produce gamma rays that pinpoint the mass of a key dark matter candidate, the axion. The Fermi Gamma-ray Space Telescope would need to be in position to detect these gamma rays within 10 seconds of the supernova's core collapse.

Researchers have discovered stellar cocoons rich in complex organic molecules within a supernova remnant, indicating that newborn stars can remain protected and preserve their molecular composition. The study suggests that the environment of our Solar System's formation may be more diverse than previously recognized.

The James Webb Space Telescope has revealed intricate patterns of shells, holes, and filaments in the supernova remnant Cassiopeia A, providing insights into molecular formation and destruction processes. CO molecules are critical indicators of cooling and chemical processes that lead to dust condensation.

Researchers propose 'dark dwarfs' could be key to understanding dark matter, with lithium-7 serving as a unique marker. A discovery of a dark dwarf would provide compelling evidence for WIMPs as a possible dark matter component.

The James Webb Space Telescope has revealed conclusive evidence of a neutron star in the remnant of Supernova 1987A, which was once thought to be a black hole. The observations confirm emission lines from highly ionized gas near the explosion site, indicating intense ultraviolet and X-ray radiation.

Astronomers have imaged and modeled an exceptionally rare supernova that could provide a new way to measure the universe's expansion rate. The supernova, known as SN Winny, is a superluminous stellar explosion 10 billion light-years away and appears five times in the night sky due to gravitational lensing.