Why are the stars dying? (Video from 2018) 1:53– (CNN) — Simultaneous explosions of stars, called supernovae, may have led to one of Earth’s mass extinctions 359 million years ago, according to new research. Several global extinction events occurred during the Devonian period, which lasted from 359 million to 419.2 million years ago, and also … Read more
Dhe life of stars does not last forever. Very massive specimens end their existence with a huge supernova explosion. Such a firework would certainly not have escaped astronomers in the dwarf galaxy PHL 293B (Kinman), 75 million light years away – if a giant star had exploded there. But when the Irish researchers from Trinity … Read more
When they reach a stage known as the luminous blue variable (LBV), the end as a supernova is usually imminent. The stars then hurl parts of their mass into space in a massive eruption, leaving a black hole. But when astronomers around Andrew Allan from Trinity College in Dublin wanted to observe such a star … Read more
Above all, it was the unusually strong drop in brightness of the star in the constellation Orion that fascinated astronomers. However, the darkening has most likely caused unusually large spots on the surface of Betelgeuse. This is what scientists at the Max Planck Institute for Astronomy (MPIA) in Heidelberg assume. The team headed by Thavisha … Read more
Madrid Spain. A supernova At least twice as bright with more energy and surely much more massive than any other found has been identified by an international team of astronomers, according to a study published today. Nature Astronomy. Measurements made by an international team indicate that the mass of this supernova it was between 50 … Read more
Magnetars are neutron stars, like pulsars, with the highest magnetic fields in the known universe. They are believed to be associated with supernova and hypernova record explosions. A new explanation for the enigmatic origin of their magnetic fields has just been found and goes in this direction. – Influenced by the work of Fred Zwicky, … Read more