A supernova (pl.: supernovae) 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 …

Oct 3, 2025 · What is a supernova explained simply? Learn how stars explode, the types of supernovae, what they leave behind, and the most famous supernovae in history.

Sep 25, 2025 · Each blast is the extremely bright, super-powerful explosion of a star. An illustration of one of the brightest and most energetic supernova explosions ever recorded.

Oct 11, 2025 · supernova, any of a class of violently exploding stars whose luminosity after eruption suddenly increases many millions of times its normal level. The term supernova is …

Aug 26, 2025 · The most massive ones go out with a bang in an explosion called a supernova. Using telescopes that peer deep into space, researchers have observed many such …

Mar 30, 2025 · A supernova is not just a star’s death—it is a dramatic event that reshapes the cosmos. These cosmic explosions are responsible for creating the elements that make up the …

Aug 25, 2025 · Now, in a study published last week in the journal Nature, Schulze and his team report that the object was an unusual supernova that offered a glimpse of the layers deep …

Jun 19, 2023 · A supernova is the explosion of a massive star. There are many different types of supernovae, but they can be broadly separated into two main types: thermonuclear runaway …

As the core collapses, the outer layers are blasted outwards in a supernova, the biggest explosion known to occur in the Universe. At its peak, a supernova can be brighter than an entire galaxy …

Mar 5, 2025 · A supernova is a violent and energetic explosion of a star in the final stages of its life. Such explosions release a tremendous quantity of energy, sometimes outshining galaxies …