When a massive star uses up all nuclear fuel, it explodes with monstrous energy, expelling more than half of itself in a fraction of seconds. This is how a supernova is born, which for a short time can emit more energy than an entire galaxy. After the explosion, the collapsed stellar core, due to the tremendous gravitational forces, turns into a neutron star. Astrophysicists believed that nuclear reactions did not occur in these stellar corpses. However, a group of astrophysicists from the University of Chicago has detected, thanks to the Rossi space satellite, a violent explosion in the bowels of the neutron star known as 4U 1820-30 , which is located 20,000 light years from Earth.
Can a dead star be resurrected?
How global warming will affect astronomy
Astronomical observations around the world will worsen in quality as a result of climate change, according to a new study.
New images of Saturn's rings in stunning detail
New images of Saturn's rings in stunning detail
This is what the Earth's magnetic field sounds like
The shield that protects our planet sounds 'pretty scary', according to ESA engineers.
Hubble photographs a nebula perfect for Halloween
Darkness looms in this Hubble Space Telescope photograph. He has focused his telescopic eyes on NGC 1999.
These are the most Earth-like exoplanets
Among the more than 5,000 exoplanets discovered to date, these are some of the most similar in size, mass, temperature or star to the one they orbit.