Search results
4 days ago · A supernova (pl.: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion.
Jul 9, 2024 · Learn about the causes, types, brightness, and effects of supernovas, the biggest explosions in the universe. Find out how NASA scientists use telescopes to study these spectacular events and what they reveal about the origin of elements and the expansion of space.
Jun 18, 2024 · Astronomers have discovered the oldest and farthest supernova ever. The new discoveries, based on data from the James Webb Space Telescope, provide a glimpse of the early universe.
Jun 17, 2024 · The Crab Nebula is the result of a core-collapse supernova from the death of a massive star. The supernova explosion itself was seen on Earth in 1054 CE and was bright enough to view during the daytime.
Jul 6, 2024 · Nova, any of a class of exploding stars whose luminosity temporarily increases from several thousand to as much as 100,000 times its normal level. A nova reaches maximum luminosity within hours after its outburst and may shine intensely for several days or occasionally for a few weeks, after which.
4 days ago · NGC 3810, the galaxy featured in this image, was the host of a Type Ia supernova in 2022. In early 2023, Hubble focused on this and a number of other galaxies to closely examine recent Type Ia supernovae. Type Ia supernovae are the result of a white dwarf exploding, and their peak brightness is very consistent.
Jul 8, 2024 · Supernovae play an important role in enriching the interstellar medium with heavier elements, such as oxygen, carbon and nitrogen, fundamental for the formation of new planets and life in general. Furthermore, their shock waves can trigger the collapse of molecular cloud s, resulting in the formation of new generations of stars .
